- Automation & ControlView all 1,920 products
- AC Drives
- PLC & I/O Cards
- Industrial Communications
- Vibration Monitoring
- Automation Accessories
- Controllers & Data Acquisition
- Isolator & Barrier
- CCTV & Security
- Safety Switches & Guard Locking
- Encoders
- HMI Displays
- Industrial Computers
- Motor Soft Starters
- Servo Drives
- Pneumatic Cylinders
- Machine Vision
- Automation Software
- Robotics
Brand: HIWIN
HIWIN QWH-CA Quiet Wide Rail Linear Guideway Block
Description
The HIWIN QWH-CA is the square block of the QW series, a wide rail linear guideway with SynchMotion technology. The QW keeps the advantages of the WE series, high moment rigidity for single-rail or space-saving axes, and adds the quieter, smoother movement, better lubrication and longer service life that come from the partitions between the balls. It runs on the same rail as the WE series.
A quiet wide rail guideway that fits WE rails
The catalog states that the QW series has all the advantages of the WE series, which are high moment rigidity and suitability for single rail or space-saving applications, and that SynchMotion technology adds quieter and smoother movement, superior lubrication and longer service life. Because QW and WE share identical rails, a design can change between them without a new rail.
Wide rail guideways replace a two-rail arrangement where the width of the carriage is limited, and the QW gives the same single-rail layout with less noise. The square QWH block and the flange QWW block come in sizes 17 to 35.
Technical specifications
| Parameter | Specification |
|---|---|
| Series | QW, wide rail type with SynchMotion technology |
| Block types | QWH square (-CA); QWW flange (-CC) |
| Model sizes | 17, 21, 27, 35 |
| Load type | C heavy load |
| Assembled height H | 17 mm to 35 mm |
| Basic dynamic load rating C | 7.32 kN (QWH17CA) to 36.8 kN (QWH35CA) |
| Basic static load rating C0 | 9.1 kN (QWH17CA) to 49.2 kN (QWH35CA) |
| Rolling elements | Steel balls separated by SynchMotion partitions |
| Rail | Shares the identical rail with the WE series |
| Accuracy classes | C, H, P, SP, UP (interchangeable type up to P) |
| Preload classes | Z0 (0 to 0.02C), ZA (0.03C to 0.05C), ZB (0.06C to 0.08C) |
| Rail length | Maximum 4000 mm |
Size range and load ratings of the QWH block
H is the assembled height, W the block width, L the block length, then C and C0 and the block and rail mass. The QWW flange blocks have the same ratings and are in the catalog extract.
| Model | H mm | W mm | L mm | C kN | C0 kN | Block kg | Rail kg/m |
|---|---|---|---|---|---|---|---|
| QWH17CA | 17 | 50 | 51 | 7.32 | 9.1 | 0.12 | 2.2 |
| QWH21CA | 21 | 54 | 59 | 8.1 | 12.1 | 0.2 | 3.0 |
| QWH27CA | 27 | 62 | 73.2 | 16 | 22.2 | 0.35 | 4.7 |
| QWH35CA | 35 | 100 | 107 | 36.8 | 49.2 | 1.1 | 9.7 |
Ordering code, preload and selection
A QW model number lists the series, block type, size, load type, block mounting, blocks per rail, rail mounting, rail length, accuracy, preload, rails per axis and dust protection (ZZ, KK, DD) with options such as RC reinforced caps. Interchangeable blocks and rails come in C, H and P accuracy with Z0 or ZA preload, and the interchangeable rail is ordered as a WE rail.
Z0 suits a constant load direction and low precision, ZA low load with high precision and ZB high rigidity with vibration. Before ordering, confirm the size, block type, preload, accuracy, rail length and E values, and check the moment loads of a single-rail design against the catalog ratings.
Related HIWIN products: HIWIN QEH-CA Quiet Low Profile Linear Guideway Block, HIWIN WEH-CA Wide Rail Linear Guideway Block and Rail, HIWIN QHH-CA Quiet Heavy Load Linear Guideway Block, HIWIN RGH-CA High Rigidity Roller Linear Guideway Block, HIWIN EGH-CA Low Profile Linear Guideway Block and Rail and HIWIN HGH-CA Heavy Load Linear Guideway Block and Rail.
Documents and quotation
The linked PDF is the QW chapter of the HIWIN Linear Guideway Catalog G99TE24-2410, unchanged. More items are in our product range. Seven Star LLC is an independent supplier in Muscat; send the QW model number, rail length, quantity and delivery location with your RFQ.
Datasheets & Documents
- Catalog HIWIN QW series chapter, Linear Guideway Catalog G99TE24-2410 (12-page extract) Download
Reviews (0)
About brand
HIWIN Technologies is a Taiwanese manufacturer of motion control and linear transmission components, founded on 11 October 1989 and headquartered in Taichung. It started as a maker of ball screws and linear motion parts, has been listed on the Taiwan Stock Exchange since 2010, and is one of the world's largest ball screw producers.
Seven Star LLC sources and supplies these components for machine builders, fabrication shops and maintenance teams in Oman.
HIWIN company profile
| Founded | 11 October 1989, Taichung, Taiwan |
|---|---|
| Headquarters | Taichung, Taiwan |
| Listing | Taiwan Stock Exchange since 2010 |
| Product families | Ballscrews, linear guideways, linear and torque motors, rotary tables, AC servo motors and drives, single-axis robots and positioning stages, articulated and SCARA robots |
Milestones
- 1989: HIWIN is founded in Taichung.
- 2010: HIWIN Technologies lists on the Taiwan Stock Exchange.
HIWIN products listed here
This page groups the ball and roller linear guideway series such as HG, EG, WE, MG, CG and RG, the quiet QH and QE series with SynchMotion technology, crossed roller bearings, ball splines and ball screws. The catalog chapter for each series is linked on its product page.
Where linear guideways and ball screws are used
Typical uses are machine tools, packaging and assembly automation, gantry and pick-and-place axes, measuring equipment and semiconductor handling. Ball screws convert rotation to linear motion, guideways carry and guide the moving mass, and crossed roller bearings carry combined loads in rotary tables and robot joints.
What to send with an enquiry
Send the series and size, block or nut type, accuracy class, preload class, rail or shaft length and the quantity. For a replacement, copy the full model number from the label of the part in service.
HIWIN products we list
Facts checked against HIWIN company profiles and Taiwanese press, October 2026.
FAQ
Questions about the HIWIN QWH-CA Quiet Wide Rail Linear Guideway Block
Answers from our engineering team on installation, compatibility and integration.
01What is the difference between QW and WE?
Both are four-row wide rail guideways with the same rail. The QW adds SynchMotion partitions between the balls for quieter, smoother running and better lubrication.
02Can a QW block run on a WE rail?
Yes. The catalog states that QW and WE share identical rails, so the interchangeable QW rail is a WE rail.
03Which sizes does QW cover?
Sizes 17, 21, 27 and 35, in the square QWH-CA and flange QWW-CC blocks.
04What preload classes are available?
Z0 is 0 to 0.02C, ZA is 0.03C to 0.05C and ZB is 0.06C to 0.08C. Interchangeable sets come in Z0 and ZA.
05Is Seven Star LLC a distributor of HIWIN?
No. Seven Star LLC is an independent supplier in Muscat that sources HIWIN products through commercial channels and checks the model against the manufacturer catalog before quoting.
Reviews
There are no reviews yet.