welcome    process    products    applications    about us    contact

bags     pumps    generators     frame presses    accessories

Polyurethane Bag Press

Our polyurethane vacuum bags offer some unique benefits. Special additives in the formulation of our bags material result in the highest durability and flexibility available anywhere. We offer 20 mil & 30 mil polyurethane vacuum bags. Our recommended 20 mil urethane bags feature a unique seamless construction for extra durability. They provide the ultimate balance between flexibility and strength.

Our other bags are electronically welded, ensuring a hermetic seal. The crystal clear material of our bags enables inspection and adjustment of the work while the air is evacuating.

The Snap-On "C" channel clamps provide quick and effective closures for your bag. It is easy to use and has proven to be the best and most reliable system for sealing the bag. Because it is used on both ends of the bag, you can load the work from either end, which makes the use much easier.

The hose connects to the side of the bag with a reinforced welded flange, guarantying a leak-proof joint. It is connected to the pump or vacuum generator with a quick disconnect. The large diameter hoses and quick disconnects that we use allow for a restriction free flow of air from the bag to the pump. This is very important for obtaining fast evacuation rates of the air, especially when pressing large bent laminations.

This "Free Breathing" quality of our system is unique to our presses and makes a big difference in the speed of air evacuation. This is evident when comparing other brands to our systems. Even if the technical specifications of the pumps seem the same, our systems will always work faster then the competition!

Why the VLT vacuum bag? 

•  Special additives in the formulation of the urethane create the highest flexibility and durability available on the market today!
•  Seamless construction on our recommended 20 mil urethane bag for extra durability
•  Hose flange is reinforced and electronically welded 5 times to the edge of the bag
•  Large diameter 9/16 hose for faster evacuation, less strain on pump
•  More convenient top side hose entry into bag
•  Permanent hose connection to bag eliminates leakage

Material Selection Chart:

 Material

 Use

 Puncture  Resistance

 Forming  Capability

 Maximum  Temperature

 Elongation

 20 mil urethane

 Heavy duty

 Very good

 Excellent

 180° F

 600%
 30 mil urethane
 Heavy duty
 Excellent
 Very Good
 180° F
 600%

Specifications:

•  All bags come with snap-on "C" channel clamps on both ends
•  8 feet of 9/16" diameter vacuum hose
•  Quick disconnects (solid brass) when ordered with pump
•  Note: Bags do not include platen or breather material for evacuation
•  See warranty on contact page

20 MIL URETHANE BAGS: Heavy duty, very good puncture resistance, excellent flexibility, seamless construction on all 54" bags, recommended for most applications.

 Part Number
 Actual Size
 Pressing Capacity
 Price
 PB 220-2
 27 x 34"
 2 x 2 ft.
 170.00
 PB 220
 54 x 34"
 4 x 2 ft.
 230.00
 PB 420
 54 x 59"
 4 x 4 ft.
 305.00
 PB 620
 54 x 83"
 4 x 6 ft.
 375.00
 PB 820
 54 x 107"
 4 x 8 ft.
 450.00
 PB 1020
 54 x 131"
 4 x 10 ft.
 500.00
 PB 1220
 54 x 155"
 4 x 12 ft.
 590.00
 PB 1420
 54 x 179"
 4 x 14 ft.
 655.00
 PB 820-6
 80 x 107"
 6 x 8 ft.
 900.00
 PB 1020-6
 80 x 131"
 6 x 10 ft.
 1000.00

30 MIL URETHANE BAGS: Heavy duty, excellent puncture resistance, very good flexibility, welded seams.

 Part Number
 Actual Size
 Pressing Capacity
 Price
 PB 130
 13.5 x 17.5"
 1 x 1 ft.
 145.00
 PB 230-2
 27 x 34"
 2 x 2 ft.
 185.00
 PB 230
 54 x 34"
 4 x 2 ft.
 340.00
 PB 430
 54 x 59"
 4 x 4 ft.
 470.00
 PB 630
 54 x 83"
 4 x 6 ft.
 655.00
 PB 830
 54 x 107"
 4 x 8 ft.
 830.00
 PB 830-C
 54 x 107"
 4 x 8 ft.
 390.00
 PB 1030
 54 x 131"
 4 x 10 ft.
 965.00
 PB 1230
 54 x 155"
 4 x 12 ft.
 1005.00
 PB 1430
 54 x 179"
 4 x 14 ft.
 
 PB 830-6
 80 x 107"
 6 x 8 ft.
 1160.00
 PB 1030-6
 80 x 131"
 6 x 10 ft.
 1350.00

30 MIL VINYL BAGS: Heavy duty, moderate puncture resistance, moderate flexibility, welded seams.

 Part Number
 Actual Size
 Pressing Capacity
 Price
 PB 630
 54 x 83"
 4 x 6 ft.
 175.00

COMPLETE PUMP & BAG SYSTEMS TO CONSIDER:

 Part Number
 Pressing Capacity
 Bag Material
 Pump
 Vacuum Flow
 Max. Vacuum
 Price
 PB 220L
 4 x 2 ft.
 20 mil urethane
 VG 2
 2.2 CFM
 27 in.Hg
 384.00
 PB 620M
 4 x 6 ft.
 20 mil urethane
 VG 4
 3.9 CFM
 27 in.Hg
 560.00
 PB 620L
 4 x 6 ft.
 20 mil urethane
 VLG 98L
 2.2 CFM
 27 in.Hg
 874.00
 PB 820L
 4 x 8 ft.
 20 mil urethane
 VLG 98H
 3.9 CFM
 27 in.Hg
 999.00
 PB 820M
 4 x 8 ft.
 20 mil urethane
 VLT 50
 4.6 CFM
 27.5 in.Hg
 1580.00
 
 
 
 
 
 
 

Prices do not include shipping or taxes(California residents only).

CUSTOM VACUUM BAGS: We can make custom bags in any material, size and shape. Contact us for a quote.

Silicone Bag Press

Made of Aerospace grade silicone rubber, these bags are used in a variety of industries and applications primarily where there is a need for a high temperature, reusable bag.

A grooved rubber seal permits for easy and quick loading and unloading. Evacuation is accomplished via a breather material laid into the bag. Available in a range of thicknesses up to .125" to provide more puncture resistance or down to .030" for more flexibility as needed.

These bags are designed to work with unregulated vacuum pumps such as our VP 5 to maintain a stable pressure.

The bags are custom made to size with single, double or three sided openings. Made for commercial use to withstand many pressing jobs. See warranty on contact page. Contact us for a quote.
Material Selection Chart:

 Material

 Color

 Elongation

 Hardness

 Temperature

 Thickness(Inches)

 SRG30

 Gray

 900%

 30 durometer

 400° F

 .030", .060", .085", .125"

 SRT40

 Translucent

 1100%

 40 durometer

 400° F

 .060", .085", .125"

 SRM50

 Maroon

 630%

 51 durometer

 450° F

 .085", .125"

Back to the Top
Call 1-707-961-4142 to order
M-FRI 9AM - 4PM PT

Copyright 2002 VLT Inc., All Rights Reserved