![[THK] — KR30H LM Guide Actuator, Motor In-line (Series), Short Block C/D](https://prosourcemro.com/wp-content/uploads/2026/05/001-929-1024x768.png)
[THK] — KR30H LM Guide Actuator, Motor In-line (Series), Short Block C/D
Family ID: THK-KR30H-SERIAL-CD
THK KR30H LM Guide Actuator, motor in-line (series) configuration. Available with or without cover. Short block ×1 (C-type) or ×2 (D-type). Integrated LM block and ball screw nut for compact design. Equal load capacity in 4 directions. Stroke range: 70–520 mm (C-type), 20–470 mm (D-type). See model number configuration guide A2-136.
24 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| KR30H20C-0070 | KR30H No Cover In-line, Short Block×1, Stroke 70mm | THK | Model: KR30H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 70 mm | Outer Rail Length: 150 mm | Overall Length L1: 220 mm | C: 100 mm | G: 25 mm | Mass: 1.4 kg | ||
| KR30H20C-0120 | KR30H No Cover In-line, Short Block×1, Stroke 120mm | THK | Model: KR30H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 120 mm | Outer Rail Length: 200 mm | Overall Length L1: 270 mm | C: 100 mm | G: 50 mm | Mass: 1.7 kg | ||
| KR30H20C-0220 | KR30H No Cover In-line, Short Block×1, Stroke 220mm | THK | Model: KR30H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 220 mm | Outer Rail Length: 300 mm | Overall Length L1: 370 mm | C: 200 mm | G: 50 mm | Mass: 2.3 kg | ||
| KR30H20C-0320 | KR30H No Cover In-line, Short Block×1, Stroke 320mm | THK | Model: KR30H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 320 mm | Outer Rail Length: 400 mm | Overall Length L1: 470 mm | C: 300 mm | G: 50 mm | Mass: 2.8 kg | ||
| KR30H20C-0420 | KR30H No Cover In-line, Short Block×1, Stroke 420mm | THK | Model: KR30H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 420 mm | Outer Rail Length: 500 mm | Overall Length L1: 570 mm | C: 400 mm | G: 50 mm | Mass: 3.4 kg | ||
| KR30H20C-0520 | KR30H No Cover In-line, Short Block×1, Stroke 520mm | THK | Model: KR30H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 520 mm | Outer Rail Length: 600 mm | Overall Length L1: 670 mm | C: 500 mm | G: 50 mm | Mass: 4.0 kg | ||
| KR30H20D-0020 | KR30H No Cover In-line, Short Block×2, Stroke 20mm | THK | Model: KR30H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 20 mm | Outer Rail Length: 150 mm | Overall Length L1: 220 mm | C: 100 mm | G: 25 mm | Mass: 1.6 kg | ||
| KR30H20D-0070 | KR30H No Cover In-line, Short Block×2, Stroke 70mm | THK | Model: KR30H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 70 mm | Outer Rail Length: 150 mm | Overall Length L1: 220 mm | C: 100 mm | G: 25 mm | Mass: 1.6 kg | ||
| KR30H20D-0170 | KR30H No Cover In-line, Short Block×2, Stroke 170mm | THK | Model: KR30H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 170 mm | Outer Rail Length: 300 mm | Overall Length L1: 370 mm | C: 200 mm | G: 50 mm | Mass: 2.5 kg | ||
| KR30H20D-0270 | KR30H No Cover In-line, Short Block×2, Stroke 270mm | THK | Model: KR30H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 270 mm | Outer Rail Length: 400 mm | Overall Length L1: 470 mm | C: 300 mm | G: 50 mm | Mass: 3.0 kg | ||
| KR30H20D-0370 | KR30H No Cover In-line, Short Block×2, Stroke 370mm | THK | Model: KR30H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 370 mm | Outer Rail Length: 500 mm | Overall Length L1: 570 mm | C: 400 mm | G: 50 mm | Mass: 3.6 kg | ||
| KR30H20D-0470 | KR30H No Cover In-line, Short Block×2, Stroke 470mm | THK | Model: KR30H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 470 mm | Outer Rail Length: 600 mm | Overall Length L1: 670 mm | C: 500 mm | G: 50 mm | Mass: 4.2 kg | ||
| KR30H21C-0070 | KR30H With Cover In-line, Short Block×1, Stroke 70mm | THK | Model: KR30H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 70 mm | Outer Rail Length: 150 mm | Overall Length L1: 220 mm | C: 100 mm | G: 25 mm | Mass: 1.6 kg | ||
| KR30H21C-0120 | KR30H With Cover In-line, Short Block×1, Stroke 120mm | THK | Model: KR30H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 120 mm | Outer Rail Length: 200 mm | Overall Length L1: 270 mm | C: 100 mm | G: 50 mm | Mass: 1.9 kg | ||
| KR30H21C-0220 | KR30H With Cover In-line, Short Block×1, Stroke 220mm | THK | Model: KR30H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 220 mm | Outer Rail Length: 300 mm | Overall Length L1: 370 mm | C: 200 mm | G: 50 mm | Mass: 2.5 kg | ||
| KR30H21C-0320 | KR30H With Cover In-line, Short Block×1, Stroke 320mm | THK | Model: KR30H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 320 mm | Outer Rail Length: 400 mm | Overall Length L1: 470 mm | C: 300 mm | G: 50 mm | Mass: 3.1 kg | ||
| KR30H21C-0420 | KR30H With Cover In-line, Short Block×1, Stroke 420mm | THK | Model: KR30H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 420 mm | Outer Rail Length: 500 mm | Overall Length L1: 570 mm | C: 400 mm | G: 50 mm | Mass: 3.7 kg | ||
| KR30H21C-0520 | KR30H With Cover In-line, Short Block×1, Stroke 520mm | THK | Model: KR30H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 520 mm | Outer Rail Length: 600 mm | Overall Length L1: 670 mm | C: 500 mm | G: 50 mm | Mass: 4.3 kg | ||
| KR30H21D-0020 | KR30H With Cover In-line, Short Block×2, Stroke 20mm | THK | Model: KR30H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 20 mm | Outer Rail Length: 150 mm | Overall Length L1: 220 mm | C: 100 mm | G: 25 mm | Mass: 1.9 kg | ||
| KR30H21D-0070 | KR30H With Cover In-line, Short Block×2, Stroke 70mm | THK | Model: KR30H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 70 mm | Outer Rail Length: 150 mm | Overall Length L1: 220 mm | C: 100 mm | G: 25 mm | Mass: 1.9 kg | ||
| KR30H21D-0170 | KR30H With Cover In-line, Short Block×2, Stroke 170mm | THK | Model: KR30H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 170 mm | Outer Rail Length: 300 mm | Overall Length L1: 370 mm | C: 200 mm | G: 50 mm | Mass: 2.8 kg | ||
| KR30H21D-0270 | KR30H With Cover In-line, Short Block×2, Stroke 270mm | THK | Model: KR30H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 270 mm | Outer Rail Length: 400 mm | Overall Length L1: 470 mm | C: 300 mm | G: 50 mm | Mass: 3.4 kg | ||
| KR30H21D-0370 | KR30H With Cover In-line, Short Block×2, Stroke 370mm | THK | Model: KR30H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 370 mm | Outer Rail Length: 500 mm | Overall Length L1: 570 mm | C: 400 mm | G: 50 mm | Mass: 4.0 kg | ||
| KR30H21D-0470 | KR30H With Cover In-line, Short Block×2, Stroke 470mm | THK | Model: KR30H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 470 mm | Outer Rail Length: 600 mm | Overall Length L1: 670 mm | C: 500 mm | G: 50 mm | Mass: 4.6 kg |
