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Sigma Integrale DK2+ Motion System

Sale price$5,400.00

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The DK2+ system uses larger motors and actuators and is able to support more weight than the regular DK2. The larger motors offer a more powerful and toque-y feel than the regular DK2, and produce a better quality ride. The DK2+ is recommended for all sim center or similar commercial applications.

The DK2+ motion system is a professional motion system for serious sim-racing enthusiasts, drivers and researchers. The system shares the same design and construction as our industrial-grade motion systems used in our full motion vehicle simulators. Additionally, DK2+ is mechanically and electrically engineered around our unique motion algorithm to provide the most realistic and representative vehicle motion feedback.
DK2+ takes a modern approach to our signal processing and motion control to create the most responsive system on the market. Every elevation change, vehicle movement, surface change and gear shift, is captured and reproduced within 2” (50mm) of the available mechanical stroke.

If you do not have an available network port on your computer. Please feel free to use a USB to Network adapter such as this model available on Amazon.

For more information, please read our frequently asked questions.

All motion systems are built to order and ship once rigorously tested.


  1. Automobilista 2 | requires enabling the shared memory option in game settings
  2. Assetto Corsa
  3. Assetto Corsa Competizione
  4. DiRT Rally 2.0 | must update the hardware settings configuration file
  5. iRacing
  6. Project CARS 2 | requires enabling the shared memory option in game settings
  7. Project CARS 3 | requires enabling the shared memory option in game settings
  8. RaceRoom Racing Experience
  9. rFactor 2
  10. F1 2021
  11. X-Plane 11
  12. Digital Combat Simulator World (DCS World)


Upcoming Integrations

More integrations coming soon. Our unique algorithm approach requires accurate tuning to ensure optimal and accurate motion response to signals generated by the software. All motion layers happen in real-time within health and safety limitations. Initial customers get their choice and preference of titles to be added.

See Software Roadmap for more details.


  • 100% designed, manufactured, assembled and tested in California, USA
  • Utilizes the largest American-made ball screw and nut in the industry for maximum durability
  • Mono-block in structure using a CNC machined billet aluminum to ensure concentricity and accuracy
  • 2″ (50mm) in piston diameter for large side-loading capability
  • T-slot aluminum extrusion (80/20) friendly
  • 16 lbs each (7.26kg) with the larger DK2+ motor


  • PC side (Windows 10)
    • Game physics engine @ 333 Hz: 3 ms
    • Windows OS response: 1 ms average
    • Sigma 10-layers algorithm: 1 ms
    • Send target positions via Ethernet: 0.3 ms
  • Controller side (Real-time OS in ARM)
    • Response to new position targets: < 1 microseconds
    • Motion Algorithm for smooth motion: Average: 25 ms, Range: 0 to 50 ms
    • Send motion data to 1st micro-controller at 1000 Hz: 1 ms
  • Controller side (2 low-latency micro-controllers)
    • Send motion data from 1st micro-controller to 2nd: 0.1 ms
    • Digital pulse generation: 0.002 ms
  • Electrical connection from 2nd micro-controller to ClearPath motor
    • 3V to 5V conversion: 2 ms
  • ClearPath servo motor
    • Digital pulse signal to actual motion: 1 ms


  • ClearPath Integrated Servo Motor CPM-SDSK-3432P-RLN
    • Rated (RMS) Torque = 209 oz-in (1.5 N-m)
    • Peak Torque = 698 oz-in (4.9 N-m)
    • Max Speed = 2,380 rpm
    • Total Weight Capacity (for optimal performance), including fully-loaded simulator with driver:
      • 3-actuator system = 600 lb (272 kg)
      • 4-actuator system = 800 lb (363 kg)
    • Optically isolated, current-based I/O system (EMI free)
    • Total system draw at 110V is about 330 W/h
  • In-house manufactured actuators | 3D Model: Available Upon Request
    • 2” (50mm) actuator travel
    • speeds of 7.93"/s @ 2,380 rpm
    • 5/8” diameter, USA ball screw and nut
    • 2” (50mm) diameter piston
    • Mono-block machined billet aluminum body
    • All American made components
  • Motion Controller | 3D Model: Available Upon Request
    • ClearPath IPC-5 Intelligent Power Supply
    • Input voltage 95-125/190-250 VAC; 50-60Hz (NO INVERTERS REQUIRED!)
    • Real-time and remote motion control via default browser or phone/tablet
    • Signal processor with amplifier
    • Embedded microcontrollers
    • Shielded Molex connectors
    • 15" wide, 9.25" deep and 3" tall
  • Sigma's Software and Algorithms
    • Motion Integrity™ architecture to provide ultra-responsive, precise and accurate motion control
    • Dynamic scaling algorithm to best represent all layers in the available actuator travel
    • Organic and natural feeling Velocity Trap™ algorithm
    • Smooth integration of the 10 motion layers
    • Real-time remote control interface
    • Custom Motion Profiles
  • Mounting hardware
    • Machined billet mounting bracket
    • T-slot aluminum extrusion (80/20) friendly
    • Machined billet floating feet with mounting capability

What's in the Box

  • Mono-block, machined billet actuators with 2” (50 mm) travel
  • Powerful, responsive and compact American Teknic servo motors
  • Total weight capacity (for optimal performance), including fully-loaded simulator with driver:
    • 3-actuator system = 600 lb (272 kg)
    • 4-actuator system = 800 lb (363 kg)
  • Billet-machined floating feet with large rubber pads
  • Aluminum t-slot (80/20) mounting hardware compatible with 25 to 45 series profiles
  • Single motion controller box (115v/240V compatible) with power and network cables
  • Two sets of 1m and 2m data and power cables from the controller to actuators
  • Sigma’s VelocityTrap™ motion control algorithm & simulation software
  • Automatic Over-the-Air controller firmware updates


  1. Why 2” (50mm) of travel?

With years of experience building simulators and motion systems for auto manufacturers, we believe that a motion system with 2.0” of actuator travel is the optimal amount to produce a precise, responsive, tight and realistic experience for sim-racing. We believe that a compact 2.0" system is more than enough to realize our complex, multi-layer VelocityTrap motion algorithm.  A longer actuator system certainly has some additional benefits, but the primary motion should still be kept within 2.0" for optimal speed and response (for sim racing application).

  1. Why the price?

Sigma Integrale is a specialized team of engineers and experts who design, prototype, manufacture and test completely in-house.  Everything is done in our facility located in Pomona, California, USA. Our DK motion controller contains our own VelocityTrap motion algorithm, which is our proprietary motion control capable of producing motion organically without simulated effects.  It has a network based interface controllable by both computers and mobile devices. The DK system uses modern chipsets and architecture, operating purely digitally using off-the-shelf and non-proprietary cables with great flexibility in lengths – allowing users to further customize their simulator systems with great versatility without signal degradation. The DK2 actuator is work of art in design and manufacturing – using premium raw material and produced by our CNC machines with minimal setup. Most parts are single-operation setups – meaning the parts are cut from start to finish in 1 shot without re-jigging; this ensures perfect alignment and concentricity for critical features.

  1. What’s the difference between Made-in-USA and In-House Manufacturing?

In the midst of the most adverse environment imaginable, Sigma Integrale went hardcore with In-House Manufacturing (IHM).  While Made-in-USA products are made entirely of locally sourced parts, IHM takes things to a new level by producing all parts within our own facility.  Our mechanical engineers are also CNC machinists; our electrical engineers build each controller box; our software engineers perform system testing, and our company owners provide product support and services. With IHM, we have full control of DK’s material quality, machining precision, electrical integrity, and product costs.  Each DK system is created with greatest care and attention possible, so we don’t lose sleep at night.

Shipping & Warranty

# of boxes Total Weight Length Width Height
DK2+ 2 Box 1 – 53lbs / 25kg
Box 2 – 35lbs / 16kg
Box 1 – 46cm / 18″
Box 2 – 46cm / 18″
Box 1 – 30cm / 12″
Box 2 – 30cm / 12″
Box 1 – 18cm / 7″
Box 2 – 38cm / 15″


Refunds, returns, and exchanges

We accept returns up to 30 days after delivery, if the item is unused and in its original condition, and we will refund the full order amount minus the shipping costs for the return. All returns are subject to a 5% restocking and assessment fee.

In the event that your order arrives damaged in any way, please email us as soon as possible at with your order number and a photo of the item’s condition. We address these on a case-by-case basis but will try our best to work towards a satisfactory solution.

If you have any further questions, please don’t hesitate to contact us at (844) 345-3195 and



Sigma Integrale DK System Comparison

DK2 DK2+ DK6
Motor Torque 124 oz-in (0.9 N-m) 209 oz-in (1.5 N-m) 209 oz-in (1.5 N-m)
Motor Peak 620 oz-in (4.4 N-m) 698 oz-in (4.9 N-m) 698 oz-in (4.9 N-m)
Motor Speed 2,520 rpm 2,380 rpm 2,380 rpm
Actuator Size 14.500″ tall x 3.125″ wide 14.750″ tall x 3.375″ wide 19.000″ tall x 3.375″ wide
Actuator Weight 9 lbs 16 lbs 20 lbs
Actuator Stroke 2″ (50mm) 2″ (50mm) 6″ (150mm)
Actuator Speed 8.4″/s @ 2,520 rpm 7.9″/s @ 2,380 rpm 7.9″/s @ 2,380 rpm
Total Capacity (4-post) 500 lbs (227 kg) 800 lbs (363 kg) 800 lbs (363 kg)
Mounting Single Position Solid CNC 6061 Single Position Solid CNC 6061 Multiple Position Solid CNC 6061
Video DK2 Video DK2+ Video DK6 Video


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