Window Crank Operators

Window operators regulate the movement of casement and awning windows. They also are used with jalousie windows and in mobile homes. This section features our replacement operators as well as accessories such as brackets, tracks, crank handles and hinge sets.

guide: How to Identify Casement & Awning Operators
Replace your casement or awning window operator with a little help from the experts at SWISCO.
How to Identify Casement & Awning Operators
video: Anatomy of a casement window
This video will familiarize you with the various parts of a casement window so that you confidently choose the correct replacement parts
Anatomy of a casement window
Window Crank Operators
How do I know if my hardware is Left or Right handed?
"Left" and "Right" handed parts are defined differently from person to person and company to company. Some define it from the inside looking out, others from the outside looking in, or even the direction the window opens. There is no industry-consistent definition. Therefore we recommend you ignore these terms entirely and focus on the physical design of the part in question to determine whether it's a match.
Why does my crank handle spin in place without working?
This indicates that the gears in the operator have stripped out. Typically the corkscrew-shaped worm gear slips out of the operator housing as a result, which unfortunately cannot be repaired. Total operator replacement in these cases is necessary.
Why does my sash hang up before it's fully open/closed?
Dirt and debris can sometimes collect in the hinge and operator tracks over the years, clogging them and preventing the sash from sliding properly. We recommend that you clean these tracks routinely to ensure they work properly. Note however that if you clean these tracks and the sash still does not move properly, it may mean either the hinges or the window operator itself are worn down and should be replaced.
Can you identify my hardware while it's still installed in the window?
In many cases we can, yes, but we still have to see as much of it as possible. You can start by opening your window as far as it can go and showing a clear top-down photo of the complete mechanism. Just keep in mind that some important details may still be obscured, which means we might have to ask for more information.
Will the numbers printed on my operator help?
Sometimes, yes. Just keep in mind that these numbers aren't always a guaranteed identifier; they are often ascribed to multiple different operators by the same brand and therefore it may not be possible to make a single recommendation using the printed code alone. We always recommend supplying photos of your hardware in addition to these codes to allow us to make the best possible recommendation.
What do I do if I can't access my operator's installation screws?
The window sill trim is often installed over the operator base, so that must be removed before the screws can be accessed.
How do I know what crank handle to buy?
The easiest way to identify the handle you need is to first identify the operator. You can then see on our online store what handle and other accessories are related items to that operator. In other instances though, the most important detail needed to determine the proper handle is to remove the original and measure the diameter of the hole. Make sure to be as precise as possible, since this dimension can be very specific.
Will your hardware fit under my new blinds?
Typically, no. There are handles available for some operators that make way for more room, such as folding and T handles. But unfortunately these operators were not designed with blinds in mind, and so the spline will always stick out a certain amount. You must install the blinds in such a way to make room for the operator handle, not the other way around.
What's the difference between an awning and casement window?
An awning window sash swings out from the bottom, with its hinges on the left and right sides. Meanwhile, a casement window sash swings out from the side, like a door, and its hinges are on the top and bottom. If you are unsure of what kind of window you have, please send photos to our experts for review.
How do I remove the cover from my old operator?
In cases where the cover can be removed, it should simply snap on and off. However many older operators are designed so that the cover is a fixed part of the base itself and cannot be removed in any way. If you're struggling to get it off, it could be that it's not possible to begin with. Don't force it; instead, contact our experts for their advice.
Ask Our Experts!

Submit photos of your hardware and consult directly with our staff of hardware experts. Whether you're trying to identify unknown parts, need help installing parts that you just purchased, or just looking for some handy tips, our experts are there to assist you.