Resin transfer molding (RTM) unit
Dual-Vac 20 Vacmobiles

A small machine with impressive performance - single machines have successfully resin infused vacuum bags as large as 185 m² (2,000 ft²).

Primary uses
This dual purpose machine is primarily intended for plants making a mix of small Light RTM parts and virtually any size range of infused parts. With the Dual-Vac accessory fitted, the machine will provide 2 independently controlled vacuum levels - a high vacuum for the clamping flange and a moderate vacuum for the mold region. With the accessory removed, the machine will provide the single vacuum level capabilities of the standard Vacmobile 20/2.

Dimensions
Length: 470 mm (18.5")
Width: 390 mm (15.4")
Normal working height: 1065 mm (42")
Transport height: 620 mm (24.4")

Weight
Approximately 42 kg (93 lbs). Weight varies with pump model.

Vacuum pump
Becker U4.20 or PVR EM 20/B, (PVR EM20 for special high vacuum applications). 50 Hz capacity 18 m³/h (10.6 cfm). 60 Hz capacity 21 m³/h (12.4 cfm).

Vacuum level (Dual-Vac)
Clamping port: up to the pump's maximum, typically 10 mbar, 8 Torr, 29.6" Hg, -14.5 psi
Infusion port: adjustable from maximum vacuum to approximately 20% vacuum using zero-loss type membrane regulator valve.

Resin catch pot
2 litres (4.2 US pints). Capacity may be supplemented by external traps, such as the Vacmobile RT19.

Vacuum ports
2 resin trap mounted ports to suit 3/8" - 10mm tubing. High integrity vacuum seals are achieved by means of external O-rings secured by hand-tightened gland nuts. Adapters to other tubing sizes are available.

Power supply
Either 230 V, 50/60 Hz or 110 V, 60 Hz, single phase