Graco Resin Transfer Molding Systems Users Manual

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Resin Transfer Molding Systems

Dispensing Equipment for RTM and Light RTM Applications

GlasCraft® RTM Systems

A full line of solutions for resin transfer molding

Resin transfer molding (RTM) is a closed

mold manufacturing process. Finished

parts are made by introducing polyester

or vinyl ester resins into closed molds

containing fiberglass, carbon or other

reinforcements.

Whether your process is traditional RTM,

Light RTM, Vacuum Infusion Process (VIP),

Closed Cavity Bag Molding (CCBM), or

other similar process, GlasCraft offers a

complete line of RTM systems to fit your

application.

GlasCraft RTM Systems provide control

at low pressure – the key to successful

Light RTM injection

• Engineered for low-pressure injection

of polyester and vinyl ester resins

• Accu-Pressure sensor monitors and

controls pressure

• Entry-level to automated, high-volume

production models are available

Typical applications:

• Marine and watercraft

• Pool and spa

• Bathware

• Consumer products

• Automotive panels and parts

• Aircraft components

2

Touch-screen PLC

Programmable machine functions –

from injection volume to catalyst ratio

(depending on options)

Superior recirculation

• Allows resin and catalyst to cycle to

the dispense head and back to the

containers, unmixed

• Keeps pigments and llers suspended

in the resin

• Allows line to be de-gassed without

wasting material

Spartan Dispense Head

Provides excellent mix of resin and

catalyst, and trouble-free injection as well

Positive Feed Catalyst pump

Allows for innite adjustment of catalyst

percentage – no tools required

Air Purge/Solvent Flush

For quick, efficient maintenance cleaning

Accu-Pressure Sensor

• Regulates, monitors and controls

injection pressure

• Stops material from dispensing if

injection pressures go above the user

set point

• Prevents molds from becoming

over-pressured

Advanced features for automated, high-volume RTM production

Advanced GlasCraft models are available with the following:

Touch screen PLC

Programmable logic controller allows you to program injection volume

and catalyst ratio settings. Reduces operator error. Results in less

wasted material and improved productivity.

Programmable digital air/solvent flush

Flushes out the static mixer with a pre-programmed amount of

solvent. Can be used in combination with the air purge function for

extra cleaning power.

Programmable Automatic Catalyst (PAC)

Ideal for manufacturers of larger parts. PAC allows you to program

and adjust catalyst ratios for the injection cycle. By reducing the

catalyst required for the first infusion of material, and increasing the

catalyst during the last part of the infusion cycle, the part cures at a

more even rate.

Programmable Radio Frequency Identification tags (RFID)

Each mold in your plant gets a unique RFID tag that you program

with specic parameters such as amount of resin required and a

catalyst injection prole. The operator simply scans the tag and

the machine automatically loads the pre-programmed settings.

RFID tags eliminate operator error and programming errors, and

save wasted material as well.

In addition, RFID tags provide your facility with unlimited

programming potential. That’s because the system only stores the

current RFID tag’s dispense parameters. Since all molding parameters

are stored on each chip, you can have an unlimited number of RFID-

tagged molds in your production facility.

Password Protected PLC

Spartan 3 PLC with PAC and RFID systems are designed with

password protection so that operators cannot change mold settings

and parameters.

3

Advantages of RTM

A growing number of companies are moving to closed mold

processes because it offers many signicant benets:

• Less wasted material

• Faster gel and cure times

• Uniform part size and thickness

• Consistent material usage

• Finished surface on both sides

• Reduced VOC emissions – less environmental impact

• Higher glass content which results in lighter weight parts

Spartan Spartan II Basic Spartan II Deluxe Spartan 3 PLC Spartan 3 PLC with PAC Spartan 3 PLC

with PAC & RFID

Feature

Entry level designed

for RTM high-

pressure injection

For all forms of

closed molding

For all forms of

automated closed

molding

For all forms of

automated closed

molding with touch-

screen programming

For all forms of high-

volume, automated

closed molding

For all forms of

closed molding;

designed to simplify

high-volume

production when

numerous mold sizes

are used

Complete recirculation ••••••

Pneumatic trigger ••••••

Air/Solvent flush ••••••

Low-pressure injection ••••••

Spartan dispense head ••••••

Positive feed SSP catalyst slave pump ••••••

Stroke counter •••••

Auto-valve ready •••••

Low-pressure injection with Accu-Pressure •••••

User-friendly control panel •••••

Dispense timer • • • •

Adjustable independent solvent flush • • • •

Independent air flush toggle switch • • • •

Adjustable gel timer •

Touch-screen programmable •••

30 programmable injection settings •••

Programmable digital air/solvent flush •••

Programmable automatic catalyst • •

Programmable radio frequency identification tags •

Unlimited programming •

Password protected •

Call today for product information or to request a demonstration.

800-746-1334 or visit us at www.graco.com.

© 2008 Graco Inc. 340040 Rev A 12/08. All other brand names or marks are used for identification purposes and are trademarks of their respective owners. All written and visual data

contained in this document are based on the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice.

Ordering Information

21650-00 Spartan

23200-00 Spartan II Basic

23240-00 Spartan II Deluxe

23280-02 Spartan 3 PLC

23280-00 Spartan 3 PLC w/PAC

23280-01 Spartan 3 PLC w/PAC & RFID

Repair Kits

Catalyst Pump

LPA-190-RK Complete rebuild kit

LPA-190-SK Seal kit

Air Motor (5-in)

20101-00 Complete service kit

20107-00 Pilot valve kit

20106-00 Main valve kit

20105-00 Gasket kit

20104-00 Stroke signal repair kit

20103-00 Rod seal kit

20102-00 Piston rod seal kit

Fluid Section

21570-00 5:1/11:1 Repair kit

Check Valves

21675-00 Resin check valve

21664-00 Solvent/air purge check valve

23547-01 Catalyst check valve

21676-00 Washer, crush, nylon, .52 ID

22904-00 Stem check valve

21044-02 Silicone o-ring

23540-00 Catalyst body check valve

22906-00 Washer, crush, nylon, ¼ ID

23524-01 Compression spring

22908-00 Round nut

Mixer

20625-00 Static mixer

Specifications

Air consumption 35 cfm @ 100 psi (991 lpm @ 6.8 bar)

at maximum pump output

Material pump capacity 2.5 gpm (9.5 lpm)

Pump output .05 gal per cycle

20 cycles = 1 gal

5 cycles = 1 liter

Max Output Pressure 1,300 psi (89 bar, 8.9MPa)

Catalyst Range 0.5% to 3.5%