• THK KR45H LM Guide Actuator, Motor In-line (Series), Short Block C/D
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THK KR45H LM Guide Actuator, Motor In-line (Series), Short Block C/D

THK KR45H LM Guide Actuator, Motor In-line (Series), Short Block C/D

THK KR45H LM Guide Actuator, motor in-line (series) configuration.

Key features

  • 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: 230–830 mm (C-type), 160–760 mm (D-type)
  • See model number configuration guide A2-136

Specifications

Motor Mounting In-line (Series)
KR45H20C-0230 KR45H No Cover In-line, Short Block×1, Stroke 230mm | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 230 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 5.0 kg
KR45H20C-0330 KR45H No Cover In-line, Short Block×1, Stroke 330mm | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 330 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 6.1 kg
KR45H20C-0430 KR45H No Cover In-line, Short Block×1, Stroke 430mm | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 430 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 7.1 kg
KR45H20C-0530 KR45H No Cover In-line, Short Block×1, Stroke 530mm | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 530 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 8.2 kg
KR45H20C-0630 KR45H No Cover In-line, Short Block×1, Stroke 630mm | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 630 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 9.3 kg
KR45H20C-0730 KR45H No Cover In-line, Short Block×1, Stroke 730mm | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 730 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 10.3 kg
KR45H20C-0830 KR45H No Cover In-line, Short Block×1, Stroke 830mm | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 830 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 11.4 kg
KR45H20D-0160 KR45H No Cover In-line, Short Block×2, Stroke 160mm | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 160 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 5.6 kg
KR45H20D-0260 KR45H No Cover In-line, Short Block×2, Stroke 260mm | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 260 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 6.7 kg
KR45H20D-0360 KR45H No Cover In-line, Short Block×2, Stroke 360mm | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 360 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 7.7 kg
KR45H20D-0460 KR45H No Cover In-line, Short Block×2, Stroke 460mm | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 460 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 8.8 kg
KR45H20D-0560 KR45H No Cover In-line, Short Block×2, Stroke 560mm | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 560 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 9.9 kg
KR45H20D-0660 KR45H No Cover In-line, Short Block×2, Stroke 660mm | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 660 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 10.9 kg
KR45H20D-0760 KR45H No Cover In-line, Short Block×2, Stroke 760mm | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 760 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 12.0 kg
KR45H21C-0230 KR45H With Cover In-line, Short Block×1, Stroke 230mm | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 230 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 5.8 kg
KR45H21C-0330 KR45H With Cover In-line, Short Block×1, Stroke 330mm | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 330 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 7.0 kg
KR45H21C-0430 KR45H With Cover In-line, Short Block×1, Stroke 430mm | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 430 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 8.1 kg
KR45H21C-0530 KR45H With Cover In-line, Short Block×1, Stroke 530mm | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 530 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 9.3 kg
KR45H21C-0630 KR45H With Cover In-line, Short Block×1, Stroke 630mm | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 630 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 10.4 kg
KR45H21C-0730 KR45H With Cover In-line, Short Block×1, Stroke 730mm | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 730 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 11.6 kg
KR45H21C-0830 KR45H With Cover In-line, Short Block×1, Stroke 830mm | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 830 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 12.7 kg
KR45H21D-0160 KR45H With Cover In-line, Short Block×2, Stroke 160mm | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 160 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 6.6 kg
KR45H21D-0260 KR45H With Cover In-line, Short Block×2, Stroke 260mm | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 260 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 7.8 kg
KR45H21D-0360 KR45H With Cover In-line, Short Block×2, Stroke 360mm | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 360 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 8.9 kg
KR45H21D-0460 KR45H With Cover In-line, Short Block×2, Stroke 460mm | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 460 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 10.1 kg
KR45H21D-0560 KR45H With Cover In-line, Short Block×2, Stroke 560mm | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 560 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 11.2 kg
KR45H21D-0660 KR45H With Cover In-line, Short Block×2, Stroke 660mm | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 660 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 12.4 kg
KR45H21D-0760 KR45H With Cover In-line, Short Block×2, Stroke 760mm | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 760 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 13.5 kg
LM Guide ActuatorsTHK
28 product codes available in this family
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THK KR45H LM Guide Actuator, Motor In-line (Series), Short Block C/D

Brand THK·LM Guide Actuators

Available part numbers (28)

KR45H20C-0230, KR45H20C-0330, KR45H20C-0430, KR45H20C-0530, KR45H20C-0630, KR45H20C-0730, KR45H20C-0830, KR45H20D-0160, KR45H20D-0260, KR45H20D-0360 + 18 more — see full table ↓

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Product codeSpec
KR45H20C-0230KR45H No Cover In-line, Short Block×1, Stroke 230mm | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 230 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 5.0 kg
KR45H20C-0330KR45H No Cover In-line, Short Block×1, Stroke 330mm | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 330 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 6.1 kg
KR45H20C-0430KR45H No Cover In-line, Short Block×1, Stroke 430mm | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 430 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 7.1 kg
KR45H20C-0530KR45H No Cover In-line, Short Block×1, Stroke 530mm | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 530 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 8.2 kg
KR45H20C-0630KR45H No Cover In-line, Short Block×1, Stroke 630mm | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 630 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 9.3 kg
KR45H20C-0730KR45H No Cover In-line, Short Block×1, Stroke 730mm | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 730 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 10.3 kg
KR45H20C-0830KR45H No Cover In-line, Short Block×1, Stroke 830mm | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 830 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 11.4 kg
KR45H20D-0160KR45H No Cover In-line, Short Block×2, Stroke 160mm | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 160 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 5.6 kg
KR45H20D-0260KR45H No Cover In-line, Short Block×2, Stroke 260mm | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 260 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 6.7 kg
KR45H20D-0360KR45H No Cover In-line, Short Block×2, Stroke 360mm | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 360 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 7.7 kg
KR45H20D-0460KR45H No Cover In-line, Short Block×2, Stroke 460mm | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 460 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 8.8 kg
KR45H20D-0560KR45H No Cover In-line, Short Block×2, Stroke 560mm | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 560 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 9.9 kg
KR45H20D-0660KR45H No Cover In-line, Short Block×2, Stroke 660mm | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 660 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 10.9 kg
KR45H20D-0760KR45H No Cover In-line, Short Block×2, Stroke 760mm | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 760 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 12.0 kg
KR45H21C-0230KR45H With Cover In-line, Short Block×1, Stroke 230mm | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 230 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 5.8 kg
KR45H21C-0330KR45H With Cover In-line, Short Block×1, Stroke 330mm | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 330 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 7.0 kg
KR45H21C-0430KR45H With Cover In-line, Short Block×1, Stroke 430mm | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 430 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 8.1 kg
KR45H21C-0530KR45H With Cover In-line, Short Block×1, Stroke 530mm | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 530 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 9.3 kg
KR45H21C-0630KR45H With Cover In-line, Short Block×1, Stroke 630mm | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 630 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 10.4 kg
KR45H21C-0730KR45H With Cover In-line, Short Block×1, Stroke 730mm | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 730 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 11.6 kg
KR45H21C-0830KR45H With Cover In-line, Short Block×1, Stroke 830mm | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 830 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 12.7 kg
KR45H21D-0160KR45H With Cover In-line, Short Block×2, Stroke 160mm | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 160 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 6.6 kg
KR45H21D-0260KR45H With Cover In-line, Short Block×2, Stroke 260mm | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 260 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 7.8 kg
KR45H21D-0360KR45H With Cover In-line, Short Block×2, Stroke 360mm | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 360 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 8.9 kg
KR45H21D-0460KR45H With Cover In-line, Short Block×2, Stroke 460mm | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 460 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 10.1 kg
KR45H21D-0560KR45H With Cover In-line, Short Block×2, Stroke 560mm | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 560 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 11.2 kg
KR45H21D-0660KR45H With Cover In-line, Short Block×2, Stroke 660mm | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 660 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 12.4 kg
KR45H21D-0760KR45H With Cover In-line, Short Block×2, Stroke 760mm | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 760 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 13.5 kg

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