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  5. MF-K (Movoparts): Ball Guided, Screw Driven Linear Units
MF-K (Movoparts): Ball Guided, Screw Driven Linear Units

MF-K (Movoparts): Ball Guided, Screw Driven Linear Units

Thomson's Movopart® MF rodless actuator slides provide guided linear motion through a ball screw drive and a saddle that rides along the top of the actuator to carry the load.  Available in two versions: M (single nut) and MD (double nut), these ball guided units are designed to provide high load capacity with low friction for precise positioning - able to produce high thrust, high precision, stiffness, and long stroke capabilities.

The Cover Band Stretcher extends the life of the cover band, which protects screw and guide from contaminants, and eliminates the need to adjust the tension as it wears.

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Overview

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MF-K Specifications:

Specifications / Shaft Size M55 M75 M100
Profile Size (w x h): mm (in)  58 x 55
(2.3 x 2.2)		  86 x 75
(3.4 x 3.0)		  108 x 100
(4.3 x 3.9)
Type of screw:  ball screw
w/ single nut		   ball screw
w/ single nut		  ball screw
w/ single nut
Max Stroke Length: mm (in) 3000 (118) 4000 (158) 6000 (236)
Max Speed: m/s (in/s) 1.6 (63.0) 1 (39.4) 1.25 (49.2)
Max Acceleration: m/s2 (in/s2)  8 (315)  8 (315)  8 (315)
Repeatability: mm (in)  0.05 (0.002)  0.05 (0.002)  0.05 (0.002)
Max Input Speed: rpm (rev/s) 3000 (50) 3000 (50) 3000 (50)
Temperature Range: °C (°F) -20 to 70
(-4 to 158)		 -20 to 70
(-4 to 158)		 -20 to 70
(-4 to 158)
 Max Dynamic Load (Fx): N (lbf)  1000 (225)  2500 (562)  5000 (1124)
Max Dynamic Load (Fy): N (lbf)  400 (89.9)  1450 (326)  3000 (674)
Max Dynamic Load (Fz): N (lbf)  400 (89.9)  1450 (326)  3000 (674)
Max Dynamic Load Torque Mx: Nm (lbf-in) 9 (80) 45 (398) 120 (1062)
Max Dynamic Load Torque My: Nm (lbf-in)
23 (204)
80 (708)
275 (2434)
Max Dynamic Load Torque Mz: Nm (lbf-in)
23 (204)
80 (708)
275 (2434)
Max Drive Shaft Force Frd: N (lbf)  200 (45)  600 (135)  1000 (225)
Max Drive Shaft Torque Mta: Nm (lbf-in) 12 (106) 30 (266) 45 (398)
Screw Diameter: mm (in) 16 (0.6) 20 (0.8) 25 (1.0)
Screw Lead: mm (in) 5/10/20
(0.2/0.4/0.8)		 5/12.7/20
(0.2/0.5/0.8)		 5/10/25
(0.2/0.4/1.0)
Weight: kg (lb)
of unit with zero stroke
of every 100 mm of stroke
of carriage
of option single screw support
of option double screw supports		  
3.9 (8.6)
0.56 (1.23)
1.20 (2.65)
0.83 (1.83)
1.88 (4.15)
 6.9 (15.2)
1.05 (2.32)
2.5 (5.51)
1.7 (3.75)
3.58 (7.89)
 14.3 (31.53)
1.72 (3.79)
4.0 (8.82)
1.86 (4.1)
4.42 (9.74)

MF-K Feature Highlights:

  • can be installed in all directions 
  • self-adjusting stainless steel cover band  
  • Multiple saddle sizes
  • Single and dual nut support
  • Load holding brake required
  • internal ball guides
  • wash down protected versions available
  • Long travel
  • High speed
  • High moment loading
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