Crank Handles

Crank Handles

Rochehandle is a leading crank handles manufacturer and supplier&wholesaler in China. Crank handles are commonly used in applications where leverage from a single-arm unit is best.

Engineered and manufactured to strict standards, Rochehandle has crank handles for every industrial product. This means that our crank handles are used in a wide range of applications. You can buy an engine crank handle, industrial crank handle or buy window crank handles.

Our crank handles are available in several high-quality materials including stainless steel crank handles, and aluminum crank handles, plastic crank handles.

Many of our crank handles are available in many styles and in several color options to choose from. You can choose modern crank handles or vintage crank handles.

If you are looking for crank handles and have detailed requirement ideas in mind, rochehandle design team will be here to help you. Through our 3 hours rapid response services from our 24/7 sales and tech support team, and excellent after-sales service, we will be your expert hand crank handles design partner in China. At Rochehandle, we can answer any crank handles tech questions that you may have, please feel free to contact us anytime for your custom crank handles design projects.

Rochehandle is a professional crank handles manufacturer in China, our clients are proud of our crank handles’ quality. We are continually seeking new handle designs to fill needs that have not yet been met. We have a collection of unique designs such as crank handles with revolving handles or crank handles with foldaway grip which can be easily operated.

Rochehandle values clients, with urgency and sincere interest in meeting your requirements. We persist driven to satisfy, driven to deliver handles that exceed your expectations in price, quality, and delivery.

If You Need Any Crank Handles For Your Business, You’ve Come To The Right Place! We are a crank handle supplier that you can fully trust!

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Comprehensive Guide to Understanding Crank Handles


Of course, you knew that a crank handle has a lot of benefits to offer. It’s a flexible tool that can be incorporated into different things such as a mechanical pencil sharpener, fishing reel, manually operated car window, the carpenter’s brace, and hand winches.

As with other handles in pieces of furniture, a crank one is a must-have equipment for residential, commercial, and industrial clients out there. It’s easy to operate, has solid construction, optimal safety, and can last for years or even decades. It’s no wonder why many people take advantage of a crank handle.

Yes, a crank handle is a beneficial and worth it investment. But it goes beyond that. There are tons of things you don’t know about the tool yet. In this eBook, you’ll understand everything about the furniture or machine accessory. Keep reading to find more information!

Chapter 1: What is a Crank Handle?

Crank Handles With Fold Away Grip

What really comes to your mind when you hear a crank handle? Well, many people would think of a tool that avoids inconvenience. Yes, it’s true that every crank is specially tailored to bring comfort up to the maximum level. It is designed to reach people’s diverse and unique needs. But what is a crank handle? Good question!

A crank handle is not as complicated as you think. It is easier to understand that you expect. It is an arm attached at an ideal angle to a shaft. It is utilized to convert reciprocating motion into a circular one, or vice versa. It can be a bent portion of the shaft or a disk. Typically called a conrod, a rod is attached to the end of the crank by a pivot. This moves in a circular motion, while the other end is well-constrained to move in a linear sliding motion.

The tool refers to a human-powered crank that’s used to turn an axle. This is incorporated into a brace, bit drill, or bicycle crankset. In this case, a person’s leg or arm serves as the conrod that applies reciprocating force to the equipment. There’s typically a bar perpendicular to another end of the arm. This often has a pedal or a rotatable handle.

Over the past few years, a crank handle is either hand-powered or foot-powered. This has been seen in a pencil sharpener, reels for cables, manually operated vehicle window, hand winches, and a treadle sewing machine. Plus, it has been a part of different engines. In fact, all reciprocating engines use connecting rods to transform the motion of the pistons into rotary one. It is also applied to a crankshaft.

Chapter 2: Different Uses and Applications

Handles are available in different forms. There are handles for doors, cabinets, and other pieces of furniture. On the other hand, a crank handle also has a unique role. It is a versatile tool that you should add to cart. Making lots of people happy for years now, perhaps, you knew that it’s used in engine crankshaft.

Vehicle and boat engines have a variety of cylinders that turn a crankshaft. Each fire at a different time. This means that there’s at least a single cylinder adding enough power and driving the machine along. Each is properly attached to the crankshaft. Thanks to the shaft that connects to the piston rods in the cylinder.

Here are some of its uses:

  • Steam Engine Crankshaft

Before, steam engines were big. They were fixed in place or occupied a building. A steam engine crankshaft makes power with a single piston that moves in and out of a cylinder. Every time you need to drive a wheel, you just have to attach the piston to a beam. As it moves up and down, the beam rocks back and forth, pulling on a conrod and crankshaft that turn the wheel.

  • Hand Crank Pump

Hand cranks are an excellent way to drive different machines with the help of your muscle power. A handle can generate enough electricity. It can even turn a rotary pump and transport enough fuel down the system. The crank also turns an impeller, which is usually sealed inside the red casing. This significantly lowers the fluid along.

  • Bicycle Pedals

Another popular crank is a bicycle pedal. It consists of two levers that multiply the force from leg muscles. Theoretically speaking, the longer the crank handles, the better. It gives more leverage than other options out there.

In reality, it’s different. The crank handle has to be short for your legs. This allows you to operate the pedals with comfort. This also gives you the peace of mind that the pedal won’t bang on the ground. Crank handles with protective gears make the bicycle the most efficient form of transportation.

  • Crank Handles for Blinds

Commonly known as window coverings, blinds offer privacy, lighting control, and child-safety features. They are energy-efficient, affordable and come in different styles. They also have the ability to block UV light. However, blinds without an efficient crank handle greatly affect all these benefits. Take your time when searching for the best solution. Even though it may not happen overnight, don’t be in a hurry. At the end of the day, all your efforts will be worth it.

  • Crank Handles for Windows

With the advancement of technology, a crank handle becomes a window accessory. It is used to open a window in two ways. It can be from left to right or vice versa. It’s usually employed in the design of multi-window displays.

The mechanism of a crank handle for windows is simple. It is used to open the window from side to side. It’s stress-free to rotate in a clockwise fashion. It comes with an operator that allows the window to open and close without a hassle. It is also equipped with a linkage arm, supporting the windowpane.

Opening a window with a crank handle is simple. You just have to clamp your hands around the accessory and turn it the opposite way. Don’t close your windows with force to avoid potential and expensive issues.

  • Trailer Crank Handles

While a crank handle provides an amazing performance to windows, it does the same thing with trailers and other vehicles. It is durable, and people also love its competitive pricing. It is available at a highly reasonable and affordable price. Of course, you want a feature-packed option and products from Rochehandle are what you can trust.

  • Machine Crank Handles

Businesses also integrate crank handles into machines. At first, people find the tools difficult to use. But, as time goes on, they love using one. They come in a variety of designs to choose from. Whatever your goals as a consumer, you can make them a reality.

Chapter 3: A Variety of Modern Materials

crank handles for windows

Window fittings are often made with plated solid brass. The most popular finishes are satin chrome, satin nickel, and polished chrome. Brass is well-polished to achieve a lively shine. It is clear lacquered to protect from rust, too.

Polished chrome and satin chrome are a strong brass base. Unlike other plating solutions out there, they are powerful and durable. They don’t even require extensive maintenance to retain the aesthetic appeal or curb value of a crank handle.

Below are the common materials used in a crank handle:

  • Stainless Steel and Rusting Fittings

Known as a hardwearing material, stainless steel is practical for crank handles and other commercial applications. It’s available in a variety of grades for projects of all sizes. It is also incorporated into other accessories. The black and rusting antique ranges from cast iron. This is either painted black or pewter.

  • Porcelain and Glass Finishes

Porcelain is mainly employed for internal crank handles. It is low maintenance and practical material that ensures huge savings. It can be cream, black, or plain white with a twist of brass, chrome, or bronze fittings. Despite the benefits, it is not as popular as the other materials. It is available in a range of colors to suit your taste.

Acrylic and glass crank handles are becoming popular for windows, blinds, and machines. Clear or bright colors are among the newest options.

  • Aluminum and Nylon Crank Handles

An aluminum crank handle has long been known as an excellent and economical alternative to inefficient materials. It is really awesome and recyclable material. Different manufacturers can now produce new and attractive designs for your unique needs. This handle is lightweight, maintenance free and corrosion resistant.

Aluminum is proven to have aesthetic color, long-lasting hardness, and maximum protection. It is durable that makes a crank handle flexible for heavy-duty tasks. It is a low-density metal that offers a hefty and nice feel. It has tremendous tensile strength.

Adequately texturized, an aluminum crank handle can offer a secure grip. Not only is it comfortable, but it is also easy for extended use. Unfortunately, there is no such thing as a perfect material. It’s uncomfortable to use during a long winter month. The good news is that it’s not a big dilemma at all. Its light, durable, and rust resistant features make it an important investment for all.

Nylon, on the other hand, is hygienic, strong, and practical. As with other metals, companies can produce it in bright colors. Because of the high presence of nylon, you can have an option that retains its brilliance. You’re going to have an investment that’s warm and comfortable to the touch.

  • Plastic Crank Handles

High-performance plastics play a crucial role in different industries. Lightweight plastics make vehicles more fuel efficient. Studies show that a 10% reduction in vehicle weight leads to at least a 7% reduction in fuel space. Current environmental and economic concerns result in the creation of energy efficient automobiles. Aside from saving fuels in vehicles, plastic crank handles have minimal corrosion, comfort, economy, safety, recyclability, and substantial design freedom.

Chapter 4: Different Types of Crank Handles

Buying a new crank handle goes beyond identifying the materials of your option. There are various types to know and gaining a little background about them would help you make a stress-free buying decision. In this chapter, you’ll take a glimpse at the most common crank handle types.

Below are a few:

  • Umbrella Crank Handles

Warm weather is just around the corner. Your favorite lounging area in your patio is waiting to be utilized. Maximum protection from the sun rays is imperative to keeping you healthy and safe with the use of a patio umbrella. This product offers a tilting mechanism that allows every user to customize the right angle. It tilts to provide enough shade without getting out of a comfy chair.

When searching for the best unit shade for your requirements, there are things to review. Many consumers would ask themselves what type of fabric or color they prefer. They’d also look for the one that has a great warranty.

Less costly umbrellas won’t last within a few years. More expensive options will be different. Thanks to the materials used for construction, frame, fabric, and overall mechanism. The best example is umbrella crank handles. You can operate the unit by turning a hand clockwise to raise it and anti-clockwise to lower the unit effectively.  This is ideal for those who can’t manually push up the umbrella.

The crank handle uses mechanical advantage, making it asimple use. Each umbrella with this system can be incorporated into a collar tilt or manual tilt. Collar tilting umbrella mechanism works like the auto tilting operating system. It uses the standard handle to either raises or lowers the unit.

  • Forged Crank Handles

Of course, most users want a robust crank handle, and this forged one is the perfect option. It is commonly found in higher stressed engines and made in a different way. Various dies are significantly machined to form enough shape. These solutions sit in a large hydraulic press with a ton of clamping force. Manufacturer places a hot bar of cutting-edge alloy onto the bottom die and closes the rest. This squeezes the metal in tightly. It is then compacted and aligned well.

  • Folding Crank Handles

Another type of handle to consider is the folded one. As with fixed handles, this provides robust winding and cranking action. The difference is that a folding handle offers additional benefit. You can fold them parallel to the crank arm. This is especially true when not in use.

Whether you’re looking for an accessory that’s ideal for an environment with limited space or doesn’t pose a risk, a folding crank tool is an excellent solution. From striking other machinery to catching on the clothing, you can say bye to all these problems all throughout your experience.

Not only that, there’s more! A folding crank handle is suitable for other situations. Whether you need to cover your handle with a panel or door when not in operation, a folding tool best fits your goals.

  • Crank with Revolving Handles

Revolving handles tremendously improve the normal operation of cranks. They enable you to maintain a stationary, firm, and comfortable grip. Not only can they boost the efficiency of your tasks, but they can also reduce the risks of injury or inconvenience.

Whether you’re tired or bored of handle-related injuries, a crank with revolving handles is the solution you shouldn’t miss. You can say bye to discomfort or accidents. What you can expect is a problem-free and affordable experience.

  • Indexed Crank Handles

Are you looking for an accurate and safe handle operation? There is no need to look further than an indexed crank handle. This has a ratchet mechanism that’s specially designed to prevent accidental slippage. This also avoids turning the crank in the wrong direction possible. Plus, it ensures the handle to rest firmly in several predetermined positions.

Chapter 5: How to Repair a Broken Window Crank Handle

Most homeowners and business owners are willing to spend to fix a damaged window crank handle. They are more likely to buy a new one to bring comfort and security back to life. It’s normal to think that way because you don’t know the best thing to do. Worry no more! Let a professional specialist handle the job for you. Working with a flexible technician can help you relax and finish your paper works without any disruption.

But it’s still good to know the typical steps that contractors do to address a partially damaged crank handle. Well, a little knowledge about the process can make you a wise client. Are you ready? Take a look at the following:

Materials to Use

  • Screwdriver
  • Pliers
  • Putty Knife
  • Toothpick
  1. Remove the Screw on the Base of the Crank Handle– Using a screwdriver, remove all attachment screws from the accessory. Pull the handle off the crank stud and don’t forget to inspect the spline. Replace the handle if teeth are worn, and splines are missing.
  2. Grasp the Crank Stud– With a pair of pliers, grasp the crank stud and turn it clockwise to open the window. Push both the window out and the extended arm to slide the bushing on the end of the arm.
  3. Loosen the Screws– For you to secure the trim on the casement cover, loosen the screws with a screwdriver. Also, pry off the trim that doesn’t have screws using a putty knife. Then, remove the mounting screws on top of the crank handle.
  4. Position the New Crank Window– After removing the screws, position the crank to align its screw holes with the window holes. Insert toothpicks into stripped screw holes, install the accessory, and tighten it.
  5. Replace the Casement Cover– Secure the screws, slide the bushing on the arm into the window track notch, place the handle over the stud, insert the attachment screw, and tighten it to secure the handle.

Chapter 6: How to Replace a Window Crank Handle?

A damaged crank window handle can be repaired depending on its complexity. Whether the spindle is missing or worn, the thought of getting it replaced is a brilliant idea. Instead of hiring a technician, do the job yourself. In fact, it is not as difficult as you imagine. It becomes convenient when you follow the steps below:

  • Finding a New Window Crank Handle

With the high demand from the public, there’s a growing number of window crank handles on the market. You will be quite surprised at the options online or offline. Before you shop, make sure to identify the make and model of your choice. Browse the internet or try the store first to get a high-quality crank. Pay attention to brands that come with a clip. This will give you enough idea about the products.

  • Uninstalling the Old Window Crank Handle

It’s normal to spend high expenditures on window crank replacement or maintenance. It’s always good to contact a technician right away. However, not all the time you can call a contractor because you can even handle small or even complex replacement.

Before you contact a service provider, see if you can roll your window using the old crank. Whether the window crank handle is in lousy shape or of the door, you might install an adjustable wrench onto the shaft yourself.

For those who are technically savvy, you might consider the thought of putting the new crank on the door shaft or roll it effectively.

Chapter 7: How to Remove the Old Window Crank Handle?

Removing a broken crank handle is difficult. However, this does not mean that you need to be a pro. A little background about the process would help you deal with the replacement of your existing crank handle.

The material you need is the needle nose plier. Basically, there’s a clip that holds the crank handle to a shaft in the door. It is located on the opposite end of the side of the accessory. Be careful when you get the nosed plier between the door and the crank. Then, pull the clip out. If you can’t uninstall the clip, get another special tool from a reliable store.

  • Prepare the New Crank

After taking the new crank out of the packaging, locate the clip. Sometimes, it is not installed in the window crank handle, so you have to do it yourself. Its actual position depends on your window. Seek help from a professional to avoid hassles.

  • Look at the Shaft

The moment you prepare the window crank handle of your option, see the shaft in the window. Aside from the groove, there’s also a spline around the shaft. When you put the handle on, the clip will slip into the groove and lock the accessory.

  • Proper Positioning

Before installation, it’s imperative to position the crank handle. Positioning will be easy when you roll the window properly. The time you put the crank on, perhaps, you’ll want to install it. As you grab the part with your hand, the position is something you’re familiar with.

For a first-timer, you might be unsure of doing the process. Experts suggest installing the part at the two o’clock position. It’s a natural area you’d love when rolling the window down.

  • Window Crank Handle Installation

Once the handle is positioned at the right angle, press the crank onto the shaft. Keep pressing until you feel the clip lock into the spline. Although it does not happen in a snap, take your time and be patient to achieve a better result.

Chapter 8: Why Work with Rochehandle?

Tired of your existing handle? Or unsatisfied with its performance? Whatever the case may be, Rochehandle was established to give you a hand! We really take great pride in our range of crank handles. We manufacture our products with high-quality construction techniques and reliable materials. Our crank handles are perfect for an array of industrial, residential, and commercial applications. Our solution can harness a lever effect to maximize the manual force from the operator and enable efficient adjustment.

Our crank handles are well-constructed from excellent glass fiber reinforced polyamide to zinc plated or brass inserts. Our versatile team customizes our options to transmit high values of torque during actual operation. Our materials provide exceptional resistance to weather and even the test of time. Whatever the environment where you’ll use a crank handle, our offerings best fit your goals.

Product options include a threaded bore, different handle sizes, folding revolving handles, and lot more. We also have indexed crank handles that feature a ratchet mechanism. This enables one-way operation and automatic locking. For more information, please feel free to contact us today! We are always glad to accommodate all your concerns with the quickest response time possible.

Chapter 9: Frequently Asked Questions

How to clean or lubricate a window crank?

Whether the crank handle is old or dirty, it gets stiff and hard to move. Instead of replacing it with a new one, you can get it back into proper condition. How are you going to do that? Simply, clean it and add some lubrication. Use the specially designed solution to expect the best results in no time.

How much does a crank handle cost?

This depends on your option. If you want to invest in high-quality, aesthetic, and sturdy accessory for your windows, vehicles, or machines, prepare your pocket. It might cost you an arm or a leg. Fortunately, there are other affordable brands you can take advantage. Even though the price is available at a reasonable price, your option would be durable and long-lasting. It really takes time and effort. You just have to do your homework to find the perfect brand. There are amazing deals and discounts that you shouldn’t miss.

Is it money-saving to handle crank handle repair, replacement, or maintenance yourself?

Of course, yes. It becomes expensive when you don’t have the knowledge and cutting-edge materials. Instead of addressing your problem, you make things worse. As early as now, rely on a specialist like Rochehandle! We have the most flexible team and a complete set of innovative tools. Helping you save unnecessary costs is one of our priorities since our establishment!

How to choose the best manufacturer of the crank handle?

Choosing a crank handle manufacturer is hard. With the thousands of service providers across the globe, you will end up overwhelmed. Pay attention to those with in-depth knowledge and wide experiences. Select the one with advanced tools and affordable rates. A manufacturer with a strong and trusted reputation would give you the peace of mind.

Looking for a handle provider is not tough. Rochehandle makes the process stress-free. We have everything you need to reach your expectations. From the people, equipment, to prices, we got your back. We build a long-term relationship with our diverse and unique clients!

Is crank handle hard to maintain?

As with other handles for pieces of furniture, a crank tool is convenient to maintain. In fact, it does not require stressful maintenance. You don’t really have to clean it on a daily basis. Plus, you don’t need to rely on a specialist greatly. You can handle the process yourself. Not only can you avoid high expenditures, but you can also enjoy your weekend. During your day off, you can relax, go shopping, or explore the nearest park.

What modern material that does not corrode?

Corrosion in crank handles is a big concern for users. But the integration of aluminum and stainless steel in handles, rust is not a big dilemma anymore. Both materials are corrosion resistant, durable, and long-lasting. Despite the years of use, the brand of your option will last a decade. Take advantage of a company that has an excellent reputation in the industry. Choose Rochehandle as we have a comprehensive collection of crank handles for everyone.

When to call Rochehandle?

Whether you don’t know the design or style that suits your needs, this is the best time to contact Rochehandle. Our people are always glad to help. From identifying the best crank handle to avoiding the burden, we come to your rescue. Please don’t feel hesitant to seek help from us. We are available 24/7 to respond to your queries on time.

What makes your crank handles stand apart from the competition?

Rochehandle has been a provider of excellent crank handles since day one of service. We use the finest materials, including aluminum, stainless steel, and plastic to deliver solutions that reach the industry standards. Modern materials alone are not enough. Thanks to our committed and flexible team. We are surrounded by versatile professionals who have been a part of our success. Without them, we would never be reputed as a one-stop shop manufacturer of relevant solutions.

Why should people choose Rochehandle?

Of course, those who are looking for crank handles want the best and Rochehandle is here to make that happen. Not only are our products available with the highest quality material, but also each comes in different sizes and styles. There are many options to pick, and we can guide everyone to make the right decisions.


A crank handle has been a part of our life without a doubt. Their birth and development make the use of furniture and machines much easier than before. It is flexible enough for different applications in residential, commercial, or industrial industry. Using an inefficient crank handle is not what you deserve. At Rochehandle, we have the best solution for you. Our products are equipped with amazing features, from corrosion resistant materials to an affordable rate. So, what are you waiting for sturdy and vibrant options? Take action today and experience a huge difference!