The HIWIN QHW15CA linear guide is a wide-flange, heavy-duty, quiet linear guide in the QH series, suitable for CNC machine tools, automation equipment, precision machinery, and semiconductor equipment.
Key Features of the HIWIN QHW15CA Linear Guide:
1. Quiet Operation
The QH series utilizes HIWIN’s SynchMotion® synchronous retainer technology. The steel balls are separated by retainers, reducing ball collisions and significantly lowering operating noise.
2. Smoother Operation
Due to optimized ball circulation paths and a synchronous coupling design, the smoothness of motion is better than the traditional HG series, making it suitable for high-speed, high-precision reciprocating motion.
3. Excellent Lubrication and Long Service Life
The synchronous coupling has an internal oil reservoir and special lubrication channels, continuously supplying oil to the balls, reducing the frequency of grease replenishment and extending service life.
4. Wide Flange Structure (W Type)
The QHW15CA features a flange-type slider with a width of 47 mm, providing enhanced anti-overturning capability and making it suitable for cantilever structures and single-rail applications.

Due to its quiet operation and heavy-duty performance, the HIWIN QHW15CA linear guide is widely used in the following industries:
Semiconductor manufacturing equipment
Electronic automated production lines
Medical and biological testing machines
High-speed CNC machine tools
Precision measuring instruments
| HIWIN QHW-CA Linear Guide Model | |
| QHW15CA | QHW20CA |
| QHW20HA | QHW25CA |
| QHW25HA | QHW30CA |
| QHW30HA | QHW35CA |
| QHW35HA | QHW45CA |
| QHW45HA | |

Model No. |
Dimensions of Assembly (mm) |
Dimensions of Block (mm) | Dimensions of Rail (mm) | Mounting Bolt for Rail |
Basic Dynamic Load Rating |
Basic Static Load Rating |
Static Rated Moment |
Weight | ||||||||||||||||||||||||
| Mg
kN-m |
Mp
kN-m |
My
kN-m |
Block
kg |
Rail
kg/m |
||||||||||||||||||||||||||||
| H | H₁ | N | W | B | B₁ | C | L1 | L | K₁ | K₂ | G | M | T | T₁ | H₂ | H₃ | Wg | Hg | D | h | d | P | E | (mm) | C(kN) | C₀ (kN) | ||||||
| QHW15CA | 24 | 4 | 16 | 47 | 38 | 4.5 | 30 | 39.4 | 61.4 | 8 | 5 | 5.3 | M5 | 6 | 8.9 | 3.95 | 4.2 | 15 | 15 | 7.5 | 5.3 | 4.5 | 60 | 20 | M4x16 | 17.94 | 19.86 | 0.1 | 0.08 | 0.08 | 0.17 | 1.45 |
| QHW20CA | 30 | 4.6 | 21.5 | 63 | 53 | 5 | 40 | 50.5 | 76.7 | 9.75
17.1 |
6 | 12 | M6 | 8 | 10 | 6 | 6 | 20 | 7.5 | 9.5 | 8.5 | 6 | 60 | 20 | M5x16 | 30.0 | 33.86 | 0.26 | 0.19 | 0.19 | 0.40 | 2.21 |
| QHW20HA | 65.2 | 91.4 | 35.7 | 42.31 | 0.31 | 0.27 | 0.27 | 0.52 | ||||||||||||||||||||||||
| QHW25CA | 36 | 5.5 | 23.5 | 70 | 57 | 6.5 | 45 | 58 | 83.4 | 10.7 | 6 | 12 | M8 | 8 | 14 | 6 | 5 | 23 | 22 | 11 | 9 | 7 | 60 | 20 | M6x20 | 41.9 | 48.75 | 0.39 | 0.31 | 0.31 | 0.59 | 3.21 |
| QHW25HA | 78.6 | 104 | 21 | 50.61 | 60.94 | 0.5 | 0.45 | 0.45 | 0.80 | |||||||||||||||||||||||

