Modular 4S System

Larger scale MODULAR vacuum system with single and dual vacuum capabilities
SKU: M4S System Category:


Ultimate flexibility: 1 or 2 Vacuum Pumps & 1 or 2 Resin Traps

The 4S – the flagship model of the Vacmobile MODULAR Series – is the culmination of more than 25 years’ experience in manufacturing vacuum systems for the fabrication of advanced composites.

Based on a series of interchangeable vacuum pump and resin trap modules, the 4S is a continuous duty vacuum system that is customisable to suit single vacuum level processes such as resin infusion and vacuum bagging over pre-preg and wet laid material, or dual vacuum level processes such as double bag infusion and RTM Light. With an optional interconnection valve on a twin pump / twin resin trap system, interchanging between single or dual vacuum level processes is instantaneous.


Flexible, scaleable….future-proofed

The 4S is a highly flexible and scalable module–based system, housed on a 4-station mobile docking station. The system allows for the simple installation of 1 or 2 vacuum pumps and 1 or 2 resin traps, giving you the freedom to reconfigure the machine to meet the changing needs of your projects.

All modules are extremely easy to install, simply locking into place without the need for tools. When infusing very large parts, the resin trap(s) – complete with vacuum controls – can be removed from the docking station and positioned remotely if required.


Dual Vacuum Capable

Instantaneous switchover from a single vacuum to dual vacuum mode (twin pump/twin trap model).

← Valve Open

Both traps operate at the same vacuum level. System can be run on one or two pumps.






← Valve Closed

One pump and one trap can operate as a single level vacuum system.
Two pumps and two traps can operate as two independent vacuum systems, e.g., for RMT Light.






Trap interconnect valve for twin trap machine







Degas Kit

This degasses a thin stream of resin on the way in to the vessel. The degas kit achieves better air removal than is possible with bulk resin degassing and is suitable for resin batches up to 9 litres (2.4 US gallons). It is also effective with high viscosity resins that are difficult to degas in bulk.







Absolute gauge

An absolute pressure gauge is easily fitted to an Modular 4S machine.






VPE ultrasonic leak detector

Ultrasonic leak detectors enable small vacuum leaks inaudible to the human ear to be detected and physically located.  Using a leak detector will considerably speed up the location and repair of vacuum bag leaks.





Additional information

Weight 52-101 kg
Dimensions 680 × 490 × 1140 mm
Vacuum pump

1 or 2 of the following continuous duty single phase oil sealed vacuum pumps:

For 230 V + 5%

VSV-20. 50 Hz capacity 20 m3/h (11.8 cfm). 60 Hz capacity 24 m3/h (14.1 cfm)

For 115 V + 5%

VSV-20. 60 Hz capacity 24 m3/h (14.1 cfm)

Vacuum level

Adjustable from 20% vacuum (800 mbar absolute) to the pump’s maximum vacuum:

0.5 mbar, 50 Pa, 0.38 Torr, 99.95% vacuum*, 29.9 “ Hg*, -101.25 kPa*, -14.68 psig*

* Please note that “gauge” vacuums are weather and altitude dependent

Resin traps

One or two RT19 resin traps, with choice of trap lid, control manifold and resin catchpot/degas bucket.

Resin catch pot

12 litres (3.1 US gallons). Heat resistant to 220 0C (430 0F). Collapsible resin catchpot and polyethylene degas bucket are optional.

Trap lid

Machined from aluminium plate with a shielded glass view port for greater peace of mind when infusing or degassing. An additional glass port allowing separate illumination of the vessel contents is available as an option. Refer to Vacmobile RT19 information sheet for details.

Lid connections

Up to 8 connections per lid in 4 optional sizes to suit the following outside diameter extruded tubes: 3/8” to 10 mm, 12.0 to 12.5 mm, 1/2” to 13 mm, 5/8” to 16 mm, or 19 mm to 3/4”. With adaptors, also suitable for 1/2” and 3/4” inside diameter tubing. On all standard tubing sizes, high integrity vacuum connections are quickly and reliably achieved at the trap lid via O-ring seals on the outside of the tube.

Trap control options

A range of vacuum control options are available. Refer to “Body side port configurations” section of the Vacmobile RT19 information sheet for details.


Full repair/replacement warranty applicable worldwide


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