[THK] — KR45H LM Guide Actuator, Motor In-line (Series), Block A/B
LM Guide Actuators THK

[THK] — KR45H LM Guide Actuator, Motor In-line (Series), Block A/B

Family ID: THK-KR45H-SERIAL-AB

THK KR45H LM Guide Actuator, motor in-line (series) configuration. Available with or without cover. Long block ×1 (A-type) or ×2 (B-type). Integrated LM block and ball screw nut for compact design. Equal load capacity in 4 directions. Stroke range: 200–800 mm (A-type), 90–690 mm (B-type). See model number configuration guide A2-136.

28 product codes available in this family

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Product Codes & Specifications

Product Code Description Brand Spec
KR45H20A-0200 KR45H No Cover In-line, Block×1, Stroke 200mm THK Model: KR45H, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 200 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 5.4 kg
KR45H20A-0300 KR45H No Cover In-line, Block×1, Stroke 300mm THK Model: KR45H, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 300 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 6.5 kg
KR45H20A-0400 KR45H No Cover In-line, Block×1, Stroke 400mm THK Model: KR45H, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 400 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 7.5 kg
KR45H20A-0500 KR45H No Cover In-line, Block×1, Stroke 500mm THK Model: KR45H, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 500 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 8.6 kg
KR45H20A-0600 KR45H No Cover In-line, Block×1, Stroke 600mm THK Model: KR45H, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 600 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 9.7 kg
KR45H20A-0700 KR45H No Cover In-line, Block×1, Stroke 700mm THK Model: KR45H, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 700 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 10.7 kg
KR45H20A-0800 KR45H No Cover In-line, Block×1, Stroke 800mm THK Model: KR45H, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 800 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 11.8 kg
KR45H20B-0090 KR45H No Cover In-line, Block×2, Stroke 90mm THK Model: KR45H, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 90 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 6.4 kg
KR45H20B-0190 KR45H No Cover In-line, Block×2, Stroke 190mm THK Model: KR45H, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 190 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 7.5 kg
KR45H20B-0290 KR45H No Cover In-line, Block×2, Stroke 290mm THK Model: KR45H, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 290 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 8.5 kg
KR45H20B-0390 KR45H No Cover In-line, Block×2, Stroke 390mm THK Model: KR45H, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 390 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 9.6 kg
KR45H20B-0490 KR45H No Cover In-line, Block×2, Stroke 490mm THK Model: KR45H, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 490 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 10.7 kg
KR45H20B-0590 KR45H No Cover In-line, Block×2, Stroke 590mm THK Model: KR45H, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 590 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 11.7 kg
KR45H20B-0690 KR45H No Cover In-line, Block×2, Stroke 690mm THK Model: KR45H, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 690 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 12.8 kg
KR45H21A-0200 KR45H With Cover In-line, Block×1, Stroke 200mm THK Model: KR45H, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 200 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 6.4 kg
KR45H21A-0300 KR45H With Cover In-line, Block×1, Stroke 300mm THK Model: KR45H, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 300 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 7.6 kg
KR45H21A-0400 KR45H With Cover In-line, Block×1, Stroke 400mm THK Model: KR45H, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 400 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 8.7 kg
KR45H21A-0500 KR45H With Cover In-line, Block×1, Stroke 500mm THK Model: KR45H, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 500 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 9.9 kg
KR45H21A-0600 KR45H With Cover In-line, Block×1, Stroke 600mm THK Model: KR45H, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 600 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 11.0 kg
KR45H21A-0700 KR45H With Cover In-line, Block×1, Stroke 700mm THK Model: KR45H, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 700 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 12.2 kg
KR45H21A-0800 KR45H With Cover In-line, Block×1, Stroke 800mm THK Model: KR45H, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 800 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 13.3 kg
KR45H21B-0090 KR45H With Cover In-line, Block×2, Stroke 90mm THK Model: KR45H, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 90 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 7.8 kg
KR45H21B-0190 KR45H With Cover In-line, Block×2, Stroke 190mm THK Model: KR45H, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 190 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 9.0 kg
KR45H21B-0290 KR45H With Cover In-line, Block×2, Stroke 290mm THK Model: KR45H, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 290 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 10.1 kg
KR45H21B-0390 KR45H With Cover In-line, Block×2, Stroke 390mm THK Model: KR45H, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 390 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 11.3 kg
KR45H21B-0490 KR45H With Cover In-line, Block×2, Stroke 490mm THK Model: KR45H, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 490 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 12.4 kg
KR45H21B-0590 KR45H With Cover In-line, Block×2, Stroke 590mm THK Model: KR45H, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 590 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 13.6 kg
KR45H21B-0690 KR45H With Cover In-line, Block×2, Stroke 690mm THK Model: KR45H, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 690 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 14.7 kg

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