HIWIN QHH series linear guide feature the brand’s exclusive SynchMotion™ silent synchronous connection technology. The overall structure employs a four-row steel ball single-arc contact design, offering advantages such as low noise, high rigidity, high load capacity, smooth operation, and long-lasting self-lubrication.
The QHH series linear guide square sliders are available in two main styles: CA heavy-duty (standard length) and HA ultra-heavy-duty (extended length), covering mainstream guide sizes such as 15, 20, 25, 30, 35, 45, and 55 mm, and are compatible with corresponding HGR series guides.
The heavy-duty square slider (standard length) has a compact structure, saving installation space and meeting the needs of conventional load applications.
The ultra-heavy-duty square slider (extended length) has a longer body, effectively improving overall load capacity and structural rigidity, suitable for heavy-duty conditions.

Core Application Industries of QHH Series Linear Guide:
Semiconductor and Electronic Manufacturing Equipment (e.g., AOI inspection machines, die bonders, dispensing machines).
CNC Machine Tools and Precision Measuring Instruments (e.g., coordinate measuring machines, high-precision CNC engraving and milling machines).
Biotechnology, Medical, and Laboratory Equipment (for environments requiring extremely low noise and cleanliness).
High-tech Industrial Automated Production Lines (e.g., industrial robots, laser engraving machines, high-speed transport slides).
| HIWIN QHH Linear Guide Model | |
| QHH15CA | QHH20CA |
| QHH20HA | QHH25CA |
| QHH25HA | QHH30CA |
| QHH30HA | QHH35CA |
| QHH35HA | QHH45CA |
| QHH45HA | |

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 | H | N | W | B | B₁ | C | L | L | K₁ | K₂ | G | Mxl | T | H₂ | H₃ | Wg | H₈ | D | P | E | (mm) | C(kN) | C[kN | ||||||||
| QHH30CA | 45 | 6 | 16 | 60 | 40 | 10 | 40
60 |
70 | 97.4 | 19.5 | 6.25 | 12 | M8x10 | 8.5 | 9.5 | 9 | 28 | 26 | 14 | 12 | 9 | 80 | 20 | M8x25 | 58.26 | 66.34 | 0.60 | 0.5 | 0.50 | 0.87 | 4.47 |
| QHH30HA | 93 | 20.4 | 21.75 | 70.32 | 88.45 | 0.83 | 0.89 | 0.89 | 1.15 | ||||||||||||||||||||||
| QHH35CA | 55 | 7.5 | 18 | 70 | 50 | 10 | 50
72 |
80
105.8 |
113.6 | 19
20.9 |
7.5 | 12 | M8x12 | 10.2 | 5.5 | 3.5 | 34 | 29 | 14 | 12 | 9 | 80 | 20 | M8x25 | 78.89 | 86.66 | 1.07 | 0.76 | 0.76 | 1.44 | |
| QHH35HA | 139.4 | 95.23 | 115.55 | 1.45 | 1.33 | 1.33 | 1.90 | 6.30 | |||||||||||||||||||||||
| QHH45CA | 70 | 9.2 | 20.5 | 86 | 60 | 13 | 60
80 |
97 | 139.4 | 23 | 10 | 12.9 | M10x17 | 16 | 18.5 | 20 | 45 | 38 | 20 | 17 | 14 | 105 | 22.5 | M12×35 | 119.4 | 135.42 | 1.83 | 1.38 | 1.38 | 2.72 | 10.41 |
| QHH45HA | 128.8 | 171.2 | 29.09 | 144.13 | 180.56 | 2.47 | 2.41 | 2.41 | 3.59 | ||||||||||||||||||||||
| Note:1 kgf=9.81 N | |||||||||||||||||||||||||||||||

