In addition to providing GAIM equipment, we also provide training on GAIM techniques, mold flow CAE analysis, product structure design, practice instruction and turn-key technical services packaged with injection molding machine.

1. 5 stagers gas pressure and velocity control (suitable for any GAIM mold.)
2. Single unit dual independent loops, expandable to 4 loops.
3. Close loop pressure control.
4. Max. output gas pressure 340 bar.
5. Controller adapts touch-screen.
6. Dynamic graphic molding pressure curve monitoring.
7.50 set mold title management and memory function.
8.Low pressure air 2 stage high efficiency pressure boosting
9.0.1% proportion valve accuracy、pressure sensing accuracy 1% 、pressure gauge accuracy 3%.
10. Compact size, light weight, easily movable.

They are identical in appearance and the difference is that GA-25 is a GAIM system containing booster, and GA-25C is a GAIM controller without booster. It depends on equipment in customer’s plant to select. GA-25 is suitable for whole plant low pressure piping, while GA-25C is suitable for whole plant high pressure piping.

Home appliance: TV、Air-Conditioner、Refrigerator、Dehumidifier.
Vehicle: Arms、Steering wheel、dashboard、pedal、bumper、window/door frame、mirror frame.
Computer: computer monitor shell、computer monitor bottom、NB shell、communication product.
Office equipment: chair arm、chair back、chair leg、desk leg、handle、table- top.
House ware: clothe rack、knife handle、racket、showerhead、faucet、bath tub handle、 computerized toilet basin seat.

1. Entering from nozzle:
Benefit
a.  Can readily use with modification to existing mold
b.  Runner is in hollow shape, reduce the quantity of resin
c.  Product free of needle trace
Short
a. All air path must be connected
b. Air paths must be symmetric and balanced
c. Cannot be used in hot runner system
d. Nozzle of machine must be replaced at high cost.
2. Entering through mold:
Benefit
a. Can enter through multi-point, and the air paths need not be totally connected
b. Gas and resin can be injected in at same time
c. Hot runner design mold permitted
d. Can be used in asymmetric mold cavity molding
Shorts
a. Need to develop and design new mold
b. Leaving needle trace on the product

In actual application, there are lots of examples that applying GAIM techniques improved the surface sink mark and distortion caused by existing mold; however, the design concept is totally different from the conventional injection molding, it takes redesign of air path to improve the molding quality.

It can reduce the need for higher clamping force, but need to have enough large column inner distance and injection volume.

It can reduce the residual stress in product, and can prevent the retraction distortion.

Shortening molding time and reducing weight are the main reason for heavy, thick piece adopting GAIM, but the length of molding cycle is still subject to the cooling time of the thickest part of product after hollowing

CAIM can eliminate chamfering and coring mechanism and reduce material of mold ( with low pressure molding) but will increase air needle, mold modification and mold testing cost.

GASCIM unit uses high pressure nitrogen generated from special gas device to precisely control gas pressure, flow, time to inject the gas into molten resin in sandwiched co-injection mold and complete gas assisted sandwich co-Injection molding. In other words, GASCIM is processing equipment combines gas-assisted Iijection molding and sandwich co-injection molding. The functions included are the benefits of both parents, and the application can expand to thin-wall 3C for increasing mold prosperity, reducing distortion and deformation, promote product yield, reduce cost and increase functions of product and quality. 

PET is polyethylene terephthalate, a saturated polyester co-polymerized with terephthalate and Ethylene Glycol. It is good in transparency, gloss and airtight, and it meets the Food Safety Standard, and it can be recycled for re-use. The glass transfer temperature (Tg) of PET is between 75～80℃, and injection molding temperature is between 270～310℃, the mold temperature is 130～150℃. Since PET is high in water absorption, humidity prevention is specially required in storage, and before processing, it has to be dehumidified and dried under 150～180℃ for 4 hours normally. And, in order to prevent the resin to re-absorb moisture, it shall be kept at temperature above 140℃.  When operation is stopped, to prevent the resin turning yellowish, the dehumidifier / dryer temperature needs be drop to 100℃, only maintaining the temperature but not humidity. At the injection molding, if the material temperature is too high, screw shearing force is too high or revolving too fast, it is likely to generate acetaldehyde and leading to caudation. Normally, the molded PET bottle shall contain less than 3ppm of acetaldehyde.

In general, PET preform molding methods are in two types: direct blowing molding and extended blowing molding.
1. Direct blowing molding: This is to inject molten PET bottle on same machine (normally referred to as Injection Stretch Blow Molding, then in the hollow mold blow and stretch to molded product. Since the PET bottle is molded and stretch blown on same unit, so it is also called one step method, and before the bottle cooling off, the bottle is blown with the remaining heat, so it is also called Hot Bottle Blank method.
2. Stretch blowing molding: In this method, injection machine is employed to produce the bottle, then the cooled bottle is heated on stretch blown unit, and stretch and blow in hollow bottle to mold. Since this method is processing on injection and stretch blow machine, it is also called 2-Step method. Also, this method heats cooled bottle to blow and stretch, it is also called Cold bottle method. The process flow is as the following: dehumidify and dry PET materialinjection machine melt material and inject into moldcool PET bottle to molddual axis stretch blow molding by Stretch Blow Molding. Note: The dual-axis stretch is stretch longitudinally with stretching rod and high- pressure air for laterally extension.
3. The application: Generally, one-step method is better suitable for small volume production for large number of specifications. 2-step method is suitable for mass production of limited type. Our FT-P series—PET preform injection molding special unit is of 2-step method.

1. PET perform injection molding machine.
2. Dehumidifiers
3. Hopper Dryer
4. Auto Loaders
5. Mold Temperature Controllers
6. Chiller
7. Robot
8. Conveyor

PET material has been widely used in the packing container for the following products: water bottle, juice bottle, edible oil bottle, cosmetics bottle, drug bottle, bear bottle, wide neck bottle, detergent bottle.