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SM+ Filament Winder

  • Fast and flexible production winder
  • Ideal for high-rate production of medium envelope parts
  • Up to 5 axes of motion in a compact platform with multiple beam lengths

Full-Scale Production

The SM+ filament winding machine is ideal for high-rate part production. This machine is built on a modular platform and provides flexibility for future expansion. This multi-spindle winding machine allows up to nine spindles to significantly increase production throughput. An overhead offset carriage beam facilitates loading/unloading, improves cleaning, and removes trip hazards from the floor. Composite part manufacturing is streamlined with an easy-to-use interface and winding software: FiberGrafiX®. The SM+ is greatly suited for any pressure vessels, including CNG and CHG tanks.

The SM+ filament winder is a standardized filament winder with all the standard product line benefits such as optimized price, reduced lead time, trusted reliability, and flexibility for future expansion. This model may be customized and automated to any customer requirement level.

Are you interested to learn more about the pressure vessels market? Read the article: Composites end markets: Pressure vessels (2022) (CompositesWorld)

Contact us to discuss your filament winding goals and how Engineering Technology Corp. can apply its expert capabilities to create the best solution to suit your filament winding needs.

Model Number


Maximum Mandrel Diameter

30 inches (1 spindle), 20 inches (3 spindles), 10 inches (5 spindles), etc.

Horizontal Carriage Stroke

60, 107, 154, or 201 inches (options)

Radial Carriage Stroke

15 inches

Maximum Mandrel Weight (per spindle)

1000 lbs

Number of Spindles

Up to 9

Number of Axes


Spindle Speed

150 RPM

Horizontal Carriage Speed

75 inches/sec

Radial Carriage Speed

65 inches/sec (3rd axis)

Rotating Eye Diameter

6 inches (4th axis)

Rotating Eye Speed

720 degrees/sec (4th axis)

Fiber System

Wet winding or towpreg

Maximum Fiber Tension (Total)

125 lbs

Basic Machine Size (L x W x H)

156 X 80 X 120 inches

Control System


Available Winder Options
  • Pneumatic tailstock quill(s)
  • Siemens control system
  • 120 VAC power outlet (or any available power)
  • 5th axis (yaw)
Available Accessories
  • ST2 servo tensioning creel
  • Computer-aided tensioning (CAT) creel
  • Bookshelf creel
  • Wet winding drum resin bath
  • Wet winding dip resin bath
  • Delivery systems (towpreg & wet winding)
  • Tape tensioner
  • Safety fence
  • Safety light curtains
  • Safety control systems
  • Auto tie-on/cut-off system
  • Tailstock chucks

All filament winders are compatible with standalone fiber tensioning and resin systems