①MGW12H HIWIN Miniature Linear Guideway Sliding Rail System Linear
Motion Guide Rail
As a proud product of HIWIN's world-class manufacturing in Taiwan,
the MGW12H Miniature Linear Guideway sets new benchmarks in
precision sliding rail systems for demanding industrial
applications. This exceptional motion solution embodies HIWIN's
decades of engineering mastery, delivering unparalleled smoothness
and reliability in a compact 12mm profile.
The MGW12H incorporates HIWIN's proprietary precision bearing
technology, ensuring vibration-free operation that's critical for
high-end automation and sensitive manufacturing processes. Its
robust construction features HIWIN's signature multi-stage sealing
system, offering superior protection against industrial
contaminants while maintaining buttery-smooth motion
characteristics.
Designed for semiconductor equipment, advanced robotics, and
precision instrumentation, this sliding rail system showcases
HIWIN's commitment to innovation. The thermal-optimized design
ensures consistent performance, while the maintenance-friendly
architecture reflects HIWIN's user-centric engineering philosophy.
Trusted by global manufacturers, the MGW12H delivers HIWIN's
trademark combination of durability and precision. With immediate
availability from our worldwide stock, it's the go-to choice for
engineers who demand nothing less than HIWIN quality in their
motion control systems.

②Drawing of MGW12H

③Model Number of MG Series

Note:
- The bottom seal is available for MGN & MGW 9, 12,14.15.
- MG5 is only supplied with outer recirculation module.
④Construction of MGW Series

- Rolling circulation system: Block, rail, ball, end cap and retainer
[except size 2).
- Lubrication system: Grease nipple is available for MGW14, 15,
lubricated by grease gun.
- MGW3, 7, 9, 12 are lubricated by the hole at the side of the end
cap.
- Dust protection system: End seal (except size2), bottom seal
(optional size 9,12,14,15], cap (size12,14,15).
④Features
- Tiny and light weight, suitable for miniature equipment.
- Gothic arch contact design can sustain loads from all directions
and offer highrigidity and high accuracy
- Steel balls are held by a miniature retainer to avoid balls from
falling out, evenwhen the blocks are removed from the rail.
- Interchangeable types are available in certain precision grades.
- Block: we offers two types of linear guideways, flange and square
types
- Rail: we offers standard top mounting type
| Model No. | Block length(mm) | Preload classes | Bolt size | Weight(kg) |
| MGW7C | 31.2 | Z0/ZF/Z1 | 4-M3x3 | 0.02 |
| MGW7H | 41 | Z0/ZF/Z1 | 4-M3x3 | 0.029 |
| MGW9C | 39.3 | Z0/ZF/Z1 | 4-M3x3 | 0.04 |
| MGW9H | 50.7 | Z0/ZF/Z1 | 4-M3x3 | 0.057 |
| MGW12C | 46.1 | Z0/ZF/Z1 | 4-M3x3.6 | 0.071 |
| MGW12H | 60.4 | Z0/ZF/Z1 | 4-M3x3.6 | 0.103 |
| MGW15C | 54.8 | Z0/ZF/Z1 | 4-M4x4.2 | 0.143 |
| MGW15H | 73.8 | Z0/ZF/Z1 | 4-M4x4.2 | 0.215 |
⑥Measurement drawing

⑦HIWIN series

⑧top product recommendation
