• THK KR33 LM Guide Actuator, Motor Parallel, Block A/B
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THK KR33 LM Guide Actuator, Motor Parallel, Block A/B

THK KR33 LM Guide Actuator, Motor Parallel, Block A/B

THK KR33 LM Guide Actuator, motor parallel configuration.

Key features

  • 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: 50–600 mm (A-type), 125–525 mm (B-type)
  • See model number configuration guide A2-136

Specifications

Motor Mounting Parallel
KR3330A-0050 KR33 No Cover Parallel, Block×1, Stroke 50mm | Model: KR33, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 50 mm | Outer Rail Length: 150 mm | Overall Length L1: 210 mm | C: 100 mm | G: 25 mm | Mass: 2.2 kg
KR3330A-0100 KR33 No Cover Parallel, Block×1, Stroke 100mm | Model: KR33, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 100 mm | Outer Rail Length: 200 mm | Overall Length L1: 260 mm | C: 100 mm | G: 50 mm | Mass: 2.6 kg
KR3330A-0200 KR33 No Cover Parallel, Block×1, Stroke 200mm | Model: KR33, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 200 mm | Outer Rail Length: 300 mm | Overall Length L1: 360 mm | C: 200 mm | G: 50 mm | Mass: 3.3 kg
KR3330A-0300 KR33 No Cover Parallel, Block×1, Stroke 300mm | Model: KR33, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 300 mm | Outer Rail Length: 400 mm | Overall Length L1: 460 mm | C: 300 mm | G: 50 mm | Mass: 4.0 kg
KR3330A-0400 KR33 No Cover Parallel, Block×1, Stroke 400mm | Model: KR33, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 400 mm | Outer Rail Length: 500 mm | Overall Length L1: 560 mm | C: 400 mm | G: 50 mm | Mass: 4.7 kg
KR3330A-0500 KR33 No Cover Parallel, Block×1, Stroke 500mm | Model: KR33, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 500 mm | Outer Rail Length: 600 mm | Overall Length L1: 660 mm | C: 500 mm | G: 50 mm | Mass: 5.5 kg
KR3330A-0600 KR33 No Cover Parallel, Block×1, Stroke 600mm | Model: KR33, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 600 mm | Outer Rail Length: 700 mm | Overall Length L1: 760 mm | C: 600 mm | G: 50 mm | Mass: 6.2 kg
KR3330B-0125 KR33 No Cover Parallel, Block×2, Stroke 125mm | Model: KR33, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 125 mm | Outer Rail Length: 300 mm | Overall Length L1: 360 mm | C: 200 mm | G: 50 mm | Mass: 3.7 kg
KR3330B-0225 KR33 No Cover Parallel, Block×2, Stroke 225mm | Model: KR33, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 225 mm | Outer Rail Length: 400 mm | Overall Length L1: 460 mm | C: 300 mm | G: 50 mm | Mass: 4.4 kg
KR3330B-0325 KR33 No Cover Parallel, Block×2, Stroke 325mm | Model: KR33, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 325 mm | Outer Rail Length: 500 mm | Overall Length L1: 560 mm | C: 400 mm | G: 50 mm | Mass: 5.1 kg
KR3330B-0425 KR33 No Cover Parallel, Block×2, Stroke 425mm | Model: KR33, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 425 mm | Outer Rail Length: 600 mm | Overall Length L1: 660 mm | C: 500 mm | G: 50 mm | Mass: 5.9 kg
KR3330B-0525 KR33 No Cover Parallel, Block×2, Stroke 525mm | Model: KR33, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 525 mm | Outer Rail Length: 700 mm | Overall Length L1: 760 mm | C: 600 mm | G: 50 mm | Mass: 6.6 kg
KR3331A-0050 KR33 With Cover Parallel, Block×1, Stroke 50mm | Model: KR33, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 50 mm | Outer Rail Length: 150 mm | Overall Length L1: 210 mm | C: 100 mm | G: 25 mm | Mass: 2.5 kg
KR3331A-0100 KR33 With Cover Parallel, Block×1, Stroke 100mm | Model: KR33, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 100 mm | Outer Rail Length: 200 mm | Overall Length L1: 260 mm | C: 100 mm | G: 50 mm | Mass: 2.9 kg
KR3331A-0200 KR33 With Cover Parallel, Block×1, Stroke 200mm | Model: KR33, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 200 mm | Outer Rail Length: 300 mm | Overall Length L1: 360 mm | C: 200 mm | G: 50 mm | Mass: 3.6 kg
KR3331A-0300 KR33 With Cover Parallel, Block×1, Stroke 300mm | Model: KR33, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 300 mm | Outer Rail Length: 400 mm | Overall Length L1: 460 mm | C: 300 mm | G: 50 mm | Mass: 4.4 kg
KR3331A-0400 KR33 With Cover Parallel, Block×1, Stroke 400mm | Model: KR33, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 400 mm | Outer Rail Length: 500 mm | Overall Length L1: 560 mm | C: 400 mm | G: 50 mm | Mass: 5.2 kg
KR3331A-0500 KR33 With Cover Parallel, Block×1, Stroke 500mm | Model: KR33, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 500 mm | Outer Rail Length: 600 mm | Overall Length L1: 660 mm | C: 500 mm | G: 50 mm | Mass: 5.9 kg
KR3331A-0600 KR33 With Cover Parallel, Block×1, Stroke 600mm | Model: KR33, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 600 mm | Outer Rail Length: 700 mm | Overall Length L1: 760 mm | C: 600 mm | G: 50 mm | Mass: 6.7 kg
KR3331B-0125 KR33 With Cover Parallel, Block×2, Stroke 125mm | Model: KR33, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 125 mm | Outer Rail Length: 300 mm | Overall Length L1: 360 mm | C: 200 mm | G: 50 mm | Mass: 4.2 kg
KR3331B-0225 KR33 With Cover Parallel, Block×2, Stroke 225mm | Model: KR33, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 225 mm | Outer Rail Length: 400 mm | Overall Length L1: 460 mm | C: 300 mm | G: 50 mm | Mass: 5.0 kg
KR3331B-0325 KR33 With Cover Parallel, Block×2, Stroke 325mm | Model: KR33, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 325 mm | Outer Rail Length: 500 mm | Overall Length L1: 560 mm | C: 400 mm | G: 50 mm | Mass: 5.8 kg
KR3331B-0425 KR33 With Cover Parallel, Block×2, Stroke 425mm | Model: KR33, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 425 mm | Outer Rail Length: 600 mm | Overall Length L1: 660 mm | C: 500 mm | G: 50 mm | Mass: 6.5 kg
KR3331B-0525 KR33 With Cover Parallel, Block×2, Stroke 525mm | Model: KR33, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 525 mm | Outer Rail Length: 700 mm | Overall Length L1: 760 mm | C: 600 mm | G: 50 mm | Mass: 7.3 kg
LM Guide ActuatorsTHK
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THK KR33 LM Guide Actuator, Motor Parallel, Block A/B

Brand THK·LM Guide Actuators

Available part numbers (24)

KR3330A-0050, KR3330A-0100, KR3330A-0200, KR3330A-0300, KR3330A-0400, KR3330A-0500, KR3330A-0600, KR3330B-0125, KR3330B-0225, KR3330B-0325 + 14 more — see full table ↓

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Product codes & specifications
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Product codeSpec
KR3330A-0050KR33 No Cover Parallel, Block×1, Stroke 50mm | Model: KR33, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 50 mm | Outer Rail Length: 150 mm | Overall Length L1: 210 mm | C: 100 mm | G: 25 mm | Mass: 2.2 kg
KR3330A-0100KR33 No Cover Parallel, Block×1, Stroke 100mm | Model: KR33, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 100 mm | Outer Rail Length: 200 mm | Overall Length L1: 260 mm | C: 100 mm | G: 50 mm | Mass: 2.6 kg
KR3330A-0200KR33 No Cover Parallel, Block×1, Stroke 200mm | Model: KR33, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 200 mm | Outer Rail Length: 300 mm | Overall Length L1: 360 mm | C: 200 mm | G: 50 mm | Mass: 3.3 kg
KR3330A-0300KR33 No Cover Parallel, Block×1, Stroke 300mm | Model: KR33, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 300 mm | Outer Rail Length: 400 mm | Overall Length L1: 460 mm | C: 300 mm | G: 50 mm | Mass: 4.0 kg
KR3330A-0400KR33 No Cover Parallel, Block×1, Stroke 400mm | Model: KR33, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 400 mm | Outer Rail Length: 500 mm | Overall Length L1: 560 mm | C: 400 mm | G: 50 mm | Mass: 4.7 kg
KR3330A-0500KR33 No Cover Parallel, Block×1, Stroke 500mm | Model: KR33, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 500 mm | Outer Rail Length: 600 mm | Overall Length L1: 660 mm | C: 500 mm | G: 50 mm | Mass: 5.5 kg
KR3330A-0600KR33 No Cover Parallel, Block×1, Stroke 600mm | Model: KR33, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 600 mm | Outer Rail Length: 700 mm | Overall Length L1: 760 mm | C: 600 mm | G: 50 mm | Mass: 6.2 kg
KR3330B-0125KR33 No Cover Parallel, Block×2, Stroke 125mm | Model: KR33, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 125 mm | Outer Rail Length: 300 mm | Overall Length L1: 360 mm | C: 200 mm | G: 50 mm | Mass: 3.7 kg
KR3330B-0225KR33 No Cover Parallel, Block×2, Stroke 225mm | Model: KR33, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 225 mm | Outer Rail Length: 400 mm | Overall Length L1: 460 mm | C: 300 mm | G: 50 mm | Mass: 4.4 kg
KR3330B-0325KR33 No Cover Parallel, Block×2, Stroke 325mm | Model: KR33, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 325 mm | Outer Rail Length: 500 mm | Overall Length L1: 560 mm | C: 400 mm | G: 50 mm | Mass: 5.1 kg
KR3330B-0425KR33 No Cover Parallel, Block×2, Stroke 425mm | Model: KR33, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 425 mm | Outer Rail Length: 600 mm | Overall Length L1: 660 mm | C: 500 mm | G: 50 mm | Mass: 5.9 kg
KR3330B-0525KR33 No Cover Parallel, Block×2, Stroke 525mm | Model: KR33, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: Parallel | Cover Code: 30 (estimated ⚠️) | Stroke: 525 mm | Outer Rail Length: 700 mm | Overall Length L1: 760 mm | C: 600 mm | G: 50 mm | Mass: 6.6 kg
KR3331A-0050KR33 With Cover Parallel, Block×1, Stroke 50mm | Model: KR33, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 50 mm | Outer Rail Length: 150 mm | Overall Length L1: 210 mm | C: 100 mm | G: 25 mm | Mass: 2.5 kg
KR3331A-0100KR33 With Cover Parallel, Block×1, Stroke 100mm | Model: KR33, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 100 mm | Outer Rail Length: 200 mm | Overall Length L1: 260 mm | C: 100 mm | G: 50 mm | Mass: 2.9 kg
KR3331A-0200KR33 With Cover Parallel, Block×1, Stroke 200mm | Model: KR33, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 200 mm | Outer Rail Length: 300 mm | Overall Length L1: 360 mm | C: 200 mm | G: 50 mm | Mass: 3.6 kg
KR3331A-0300KR33 With Cover Parallel, Block×1, Stroke 300mm | Model: KR33, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 300 mm | Outer Rail Length: 400 mm | Overall Length L1: 460 mm | C: 300 mm | G: 50 mm | Mass: 4.4 kg
KR3331A-0400KR33 With Cover Parallel, Block×1, Stroke 400mm | Model: KR33, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 400 mm | Outer Rail Length: 500 mm | Overall Length L1: 560 mm | C: 400 mm | G: 50 mm | Mass: 5.2 kg
KR3331A-0500KR33 With Cover Parallel, Block×1, Stroke 500mm | Model: KR33, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 500 mm | Outer Rail Length: 600 mm | Overall Length L1: 660 mm | C: 500 mm | G: 50 mm | Mass: 5.9 kg
KR3331A-0600KR33 With Cover Parallel, Block×1, Stroke 600mm | Model: KR33, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 600 mm | Outer Rail Length: 700 mm | Overall Length L1: 760 mm | C: 600 mm | G: 50 mm | Mass: 6.7 kg
KR3331B-0125KR33 With Cover Parallel, Block×2, Stroke 125mm | Model: KR33, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 125 mm | Outer Rail Length: 300 mm | Overall Length L1: 360 mm | C: 200 mm | G: 50 mm | Mass: 4.2 kg
KR3331B-0225KR33 With Cover Parallel, Block×2, Stroke 225mm | Model: KR33, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 225 mm | Outer Rail Length: 400 mm | Overall Length L1: 460 mm | C: 300 mm | G: 50 mm | Mass: 5.0 kg
KR3331B-0325KR33 With Cover Parallel, Block×2, Stroke 325mm | Model: KR33, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 325 mm | Outer Rail Length: 500 mm | Overall Length L1: 560 mm | C: 400 mm | G: 50 mm | Mass: 5.8 kg
KR3331B-0425KR33 With Cover Parallel, Block×2, Stroke 425mm | Model: KR33, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 425 mm | Outer Rail Length: 600 mm | Overall Length L1: 660 mm | C: 500 mm | G: 50 mm | Mass: 6.5 kg
KR3331B-0525KR33 With Cover Parallel, Block×2, Stroke 525mm | Model: KR33, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: Parallel | Cover Code: 31 (estimated ⚠️) | Stroke: 525 mm | Outer Rail Length: 700 mm | Overall Length L1: 760 mm | C: 600 mm | G: 50 mm | Mass: 7.3 kg

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