Model #55

The Model #55 "Wasp" Mini-Jector injection molding machine uses a reciprocating screw plasticizing injection unit. The machine utilizes the same self-clamping "V" mold system used on plunger type "Wasp" Mini-Jectors but rather than depending on injection ram force the Model #55 "Wasp" uses an independent short stroke hydraulic cylinder to generate that force. This permits full clamp force independent of injection pressure. The Model #55 requires only 230 volt single phase power and requres no more 3.5 sq. ft. of bench space. It has a self-contained hydraulic power unit of 5.4 gallon reservoir with a 2 HP 1725 RPM motor driving a 2.3 GPM gear pump. Adjustments are provided for screw speed, back pressure and injection pressure, and as an option, for injection speed. Overall and injection dwell times are cotrolled by solid state timers plus three auto-tune pyrometers control rear, front and nozzle area temperature.


Specifications
(Specifications may change without notice)

	55-1	55-2
Screw Diameter-inches	.875	1.125
Screw Stroke-inches	3.0	4.00
Screw displacement-cubic inches	1.80	3.98
Maximum shot size-ounces polystyrene	1.0	2.15
Maximum Injection Pressure PSI	16,065	16,593
Screw L/D (no. of turns)	15:1	15:1
Maximum Screw RPM	172	106
Maximum Screw Torque-Lb. Inch	852	1765
Plasticizing Capacity-lbs per hour	17.5	18.5
Screw Recovery Rate-ounces per sec	.077	.082
Maximum Nozzle discharge rate-cubic in./sec	1.13	1.09
Barrel wattage	2100	2700
Nozzle wattage	150	150
Approx. clamping pressure-tons	11.75
Max. recommended molding area-sq. in	6.0
Mold ejection force -lbs	3313
Max. mold size W x L x H-in	2.13 x 7 x 3
Pump Delivery-GPM	2.3
Motor HP @ 1725 RPM	2.0
Reservoir capacity-gals.	5.4
Hydraulic system pressure-PSI	2050
Power consumption-AMPS (230V single phase)	19.5	22.15
Machine shipping weight	650Lbs.
Overall dimensions W x L x H-in	20.5 x 27.0 x 45.0

Mini-Jector Machinery Corp., PO Box 259. Tel: 440-564-7210; Fax: 440-564-5432.