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IMA S Hygienic Stainless Steel Actuators
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IMA-S Stainless Steel Servo Motor Actuator

Hygienic servo actuators for the most demanding food and beverage applications 

The IMA-S is a hygienically designed integrated electric servo actuator for the food and beverage processing industry. The IP69K rated design features a 316 stainless steel construction, hygienic fasteners and cord grips, ideal for effective cleaning. 

  • 2 body sizes with built-to-order stroke lengths and mounting options 
  • Forces up to 2,500 lbf (11.1 kN)
  • Stroke lengths up to 18 inches (457 mm)
  • Standard internal anti-rotate thrust rod option available
  • IP69K standard protection against high pressure washdown

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Features & Ordering

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IMA-S Brochure

IMA-S: Hygienic Integrated Servo Actuator Features

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IMA-S Features & Advantages

IMA-S: Hygienic Integrated Servo Actuator Features

The efficient, corrosion resistant 316 stainless steel design of the IMA-S hygienic integrated servo motor actuator is power dense, and features:

  • Skewed winding to minimizing cogging torque for smooth, repeatable motion
  • A low electric time constraint motor for quick response
  • Welded, polished joints to create exceptionally hygienic seams
  • Chemically inert, wear resistant blue gaskets and o-rings
  • Flexible feedback and cable options including single (DSL) and dual cable
  • An FDA-approved field replaceable seal cartridge that is IP69K rated for wash-down protection

 

IMA-S Ordering

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Specifications

IMAS Stainless Steel Servo Motor Actuator Specifications
Specification Units IMAS22 IMAS33 IMAS33SA
Maximum Stroke in (mm) 12 (305) 18 (457) 12 (305)
Maximum Force lbf (kN) 325 (1.45) 2,500 (11.1) 2,500 (11.1)
Maximum Speed in/sec (mm/sec) 19.6 (500) 19.6 (500) 19.6 (500)

IMA-S Performance Specifications

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IMA-S Motor Specs & Additional Performance, Mechanical Specs

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IMA-S Detailed Specifications

Series Stack1 Nut/Screw Screw lead Dynamic load rating (1 mil revs) Cont. Force Peak Force Max. Velocity Base Inertia 2 Inertia per unit of stroke Break- away Torque Nominal Back Drive Force 3
in lbf lbf lbf in/sec lb-in2 lb-in2 / in in-lb lbf
IMA-ST22 1 BN05 0.197 1286 100 325 14.0 0.22383 0.00148 3 49
3 BN05 0.197 1286 258 325 14.0 0.42960 0.00148 3 49
1 BN10 0.394 989 50 305 19.6 0.22701 0.00182 3 25
3 BN10 0.394 989 129 325 19.6 0.43381 0.00182 3 25
IMA-ST33 1 BN05 0.197 1958 269 1000 12.0 0.78337 0.00351 4.8 78
3 BN05 0.197 1958 779 1000 11.5 1.50519 0.00351 4.8 78
1 BN10 0.394 1214 134 651 19.6 0.79067 0.00408 4.8 39
3 BN10 0.394 1214 389 900 19.6 1.51421 0.00408 4.8 39
1 BN20 0.787 2560 67 326 19.6 0.85882 0.01355 4.8 20
3 BN20 0.787 2560 195 773 19.6 1.61076 0.01355 4.8 20
1 RN04 0.157 9236 292 1417 9.6 0.78379 0.00372 5.3 98
3 RN04 0.157 9236 847 2500 9.2 1.50624 0.00372 5.3 98
1 RN05 0.197 10211 234 1134 12.0 0.78485 0.00380 5.3 78
3 RN05 0.197 10211 678 2500 11.5 1.50753 0.00380 5.3 78
1 RN10 0.394 10211 117 567 19.6 0.79490 0.00468 5.3 39
3 RN10 0.394 10211 339 1346 19.6 1.52022 0.00468 5.3 39
IMA-SA33 3 RN04 0.157 10211 847 2500 9.2 1.64703 0.01022 6.4 118
3 RN05 0.197 10211 678 2500 11.5 1.64893 0.01029 6.4 94
3 RN10 0.394 10211 339 1346 19.6 1.67409 0.01149 6.4 47

1 1 Stack winding MV21 / 41; 3 Stack winding MV23 / 43

2 Value given is for a zero stroke actuator

† To be determined, visit www.tolomatic.com for up-to-date information

3 In all vertical application an unpowered IMA-S will require a brake to maintain position.

Tolomatic recommends that the nominal back drive force specification be used for reference only.

Back drive force is subject to change throughout the life of the actuator, due to mechanical break in, ambient temperature, and duty cycle variation.

Series Stack1 Nut/Screw Screw lead Dynamic load rating (1 mil revs) Cont. Force Peak Force Max. Velocity Base Inertia 2 Inertia per unit of stroke Break- away Torque Nominal Back Drive Force 3
mm kN kN kN mm/sec kg-cm2 kg-cm2 / mm N-m N
IMA-ST22 1 BN05 5 5.72 0.45 1.45 355 0.6550 0.00017 0.34 217.95
3 BN05 5 5.72 1.15 1.45 355 1.2572 0.00017 0.34 217.95
1 BN10 10 4.40 0.22 1.36 497 0.6643 0.00021 0.34 111.20
3 BN10 10 4.40 0.57 1.45 497 1.2695 0.00021 0.34 111.20
IMA-ST33 1 BN05 5 8.71 1.19 4.45 304 2.2924 0.00040 0.54 346.94
3 BN05 5 8.71 3.46 4.45 292 4.4048 0.00040 0.54 346.94
1 BN10 10 5.40 0.60 2.90 497 2.3138 0.00047 0.54 173.47
3 BN10 10 5.40 1.73 4.00 497 4.4312 0.00047 0.54 173.47
1 BN20 20 11.39 0.30 1.45 497 2.5132 0.00156 0.54 88.96
3 BN20 20 11.39 0.87 3.44 497 4.7137 0.00156 0.54 88.96
1 RN04 4 41.08 1.30 6.30 243 2.2937 0.00043 0.60 435.90
3 RN04 4 41.08 3.77 11.12 233 4.4079 0.00043 0.60 435.90
1 RN05 5 45.42 1.04 5.04 304 2.2968 0.00044 0.60 346.94
3 RN05 5 45.42 3.02 11.12 292 4.4116 0.00044 0.60 346.94
1 RN10 10 45.42 0.52 2.52 497 2.3262 0.00054 0.60 173.47
3 RN10 10 45.42 1.51 5.99 497 4.4488 0.00054 0.60 173.47
IMA-SA33 3 RN04 4 45.42 3.77 11.12 233 4.8199 0.00118 0.72 524.86
3 RN05 5 45.42 3.02 11.12 292 4.8254 0.00119 0.72 418.11
3 RN10 10 45.42 1.51 5.99 497 4.8991 0.00132 0.72 209.06

1 1 Stack winding MV21 / 41; 3 Stack winding MV23 / 43

2 Value given is for a zero stroke actuator

† To be determined, visit www.tolomatic.com for up-to-date information

3 In all vertical application an unpowered IMA-S will require a brake to maintain position.

Tolomatic recommends that the nominal back drive force specification be used for reference only.

Back drive force is subject to change throughout the life of the actuator, due to mechanical break in, ambient temperature, and duty cycle variation.

IMA-S22 IMA-S33 IMA-SA33
Winding/Motor Voltage MV21 MV41 MV23 MV43 MV21 MV41 MV23 MV43 MV23 MV43
Torque Constant (K t ) N-m/A Peak 0.37 0.75 0.49 0.93 0.61 1.21 0.62 1.21 0.62 1.21
in-lb/A Peak 3.3 6.6 4.3 8.2 5.4 10.7 5.5 10.7 5.5 10.7
Voltage Constant (K e ) V/Krpm Peak 51 102 61 122 81 160 79.8 154 79.8 154
Continuous Stall Torque N-m 0.42 0.42 1.07 1.07 1.12 1.12 3.24 3.24 3.24 3.24
in-lb 3.7 3.7 9.5 9.5 9.9 9.9 28.7 28.7 28.7 28.7
Continuous Stall Current A RMS 0.8 0.4 1.55 0.775 1.3 0.65 3.7 1.85 3.7 1.85
Peak Torque N-m 2.54 2.54 4.51 4.51 5.42 5.42 13.22 12.88 13.22 12.88
in-lb 22.5 22.5 39.9 39.9 48 48 117 114 117 114
Peak Current A RMS 4.8 2.4 6.6 3.45 6.3 3.3 15 7.5 15 7.5
Resistance Ohms 18.1 72.4 7.1 28.3 10 40.1 2.07 8.3 2.07 8.3
Inductance mH 10.7 42 4.5 18 13.6 54.1 3.8 15 3.8 15
Bus Voltage V RMS 230 460 230 460 230 460 230 460 230 460
Speed @ Rated V RPM 4,264 3,650 3,500 3,500
No. of Poles 8

RoHs Compliant Components;

Performance data was validated using an aluminum face mount plate: IMA22/33 (8.25″ x 7.0″ x 0.7″);

Ambient Temperature = 77°F (25°C); Elevation < 3281′ (1,000 m); Drive specifications: Sinusoidal Commutation and PWM Voltage Source

IMA-ST22
(1 Stack, MV21/41)		 IMA-ST22
(3 Stack, MV23/43)		 IMA-ST33
(1 Stack, MV21/41)		 IMA-ST33
(3 Stack, MV23/43)		 IMA-SA33
Face Size mm 64 64 89 89 89
in 2.52 2.52 3.504 3.504 3.504
Stroke mm 76.2 to 304.8 152.4 to 304.8 76.2 to 457.2 152.4 to 457.2 0 to 304.8
in 3.0 to 12.0 6.0 to 12.0 3.0 to 18.0 6.0 to 18.0 0.0 to 12
*Base Weight kg 4.8 6.1 10.2 12.5 13.9
lb 10.5 13.4 22.5 27.5 30.6
Weight per unit of stroke kg/mm 0.0079 0.0079 0.0132 0.0132 0.0173
lb/in 0.4408 0.4408 0.7390 0.7390 0.9690
Screw Lead Accuracy BN mm/300 = 0.051 in/ft = 0.002 (0.004 in/ft for IMA-S33BN20)
RN mm/300 = 0.010 in/ft = 0.0004
Screw Lead Backlash BN mm = 0.1 in = 0.004
RN mm = 0.051 in = 0.002
Temp range °C -20 to 40
°F -4 to 104
IP rating IP69K (Static)
Rel. Humidity
(non-condensing)		 5 to 90%
Shock 20 gpeak, half sine, 6ms, 3 axis, IEC 60068-2-27
Vibration 2.5 grms, 30-2000 Hz, 3-axis, 1hr, IEC 60068-2-64
*Value given is for an actuator with minimum stroke, add weight per unit of stroke to calculate weight of entire actuator

Dimensions

IMA-S Dimensions

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Pharmaceutical Manufacturing

Challenge: Operation of door/gate to index vials prior to sealing.
Product Family: Electric Actuators
Product Used: IMAS

Food Processing / Filling Machine

Application Description

Filling machine that requires frequent container changes and wash-down

Application Challenge

Enable fast, flexible positioning across varying container sizes, performing precise vertical movements

In filling machines that require frequent container changeovers and routine washdown, the IMA-S servo linear actuator provided a practical fit. Its all-in-one construction supported easier integration in equipment designed for hygienic environments.

Additional IMA-S information

The IMA-S is a hygienically designed integrated electric servo actuator for the food and beverage processing industry. The IP69K rated design features all 316 stainless steel construction, hygienic fasteners and cord grips, ideal for effective cleaning.

Drive Integration

Tolomatic’s integrated motor products (IMA & IMAS) integrate with a wide range manufacturers’ servo drives. Check our Drive Integration Resource for supporting documentation and motor files.

Tolomatic supports integration with Rockwell Automation through the use of custom motor files (CMF). See our Tech Note: interfacing the IMA actuator and absolute encoder with Rockwell Automation servo drives.

Flexible design with options to fit your application

This product line includes an option for an internal anti-rotate feature eliminating the need for an external guidance mechanism, ideal for applications such as volumetric filling and pumping.

Feedback options include multi-turn absolute encoders (Hiperface DSL, Hiperface Sin-Cos, EnDat 2.2), incremental encoder, and a resolver to integrate with most PLC or control systems.

Improve hygienic machine design with IMA-S food grade integrated servo motor actuators

  • Provides complete control over speed and position at all times
  • Hygienic design to allow for food grade cleaning and sanitizing
  • Resists corrosion with 316 stainless steel body
  • Provides IP69k wash-down protection with blue seals/o-rings and hygienic fasteners/cord grips
  • Improves performance, flexibility and efficiency in comparison to fluid power technologies

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