lsr injection molding machine Liquid Silicon Rubber LSR Injection Molding Machine

Product Details

What is Liquid Silicone Rubber?

Liquid silicone rubber (LSR) is very low viscosity silicone that can be injection molded or cast into silicone rubber sheets. "Liquid" is explicit in the name to differentiate LSRs from high consistency gum based silicone products. LSRs are addition cure / platinum cure systems. In its raw uncured form, LSR is two parts liquid that are mixed together (mixing of Part A and Part B starts the curing) and heated to accelerate the curing process.  LSRs are generally injection molded or cast . Note that injection molding of liquid silicone rubber is the inverse of molding thermoplastics; room temperature liquid silicone compound is injected into and cured in a hot mold.

LSR at a Glance :

• Wide hardness range of 10 to 80 durometer Shore A

• Wide operating temperature (-58°F to 392°F)

• Excellent UV and ozone resistance

• Excellent electrical insulation

• Excellent for outdoor environmental sealing

• Good choice for submerged sealing (IP67 and NEMA 6)

• Good material for low temperature cushioning (cold drop test)

• Custom molded components, sheets and continuous cast sheets

• Many available standard colors and custom colors for molded parts and molded sheets

• Fast prototyping - LSR sheet / waterjet cut parts

• Available with adhesive b


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▪ High-rigid frame structure assures stable and smooth sliding movement

Model No.ST55S-LSR(Single Slide)



Screw Diametermm283236
Theoretical Injection Volumecm386112.5142.4
Max.Injection PressureMpa(kgf/cm2)153(1563)162(1661)127(1313)
Injection Ratecm3/s8883105
Injection Speedmm/s103
Screw Speed Rotationr.p.m0-240
Nozzle Out From Platensmm≥45



Clamping ForceKN(tf)539(55)
Clamping Strokemm200
Min.Mold Thicknessmm120(200)
Distance Between Tie Barsmm445*255---
Max.Mould Sizemm380*376380*376300*300
Platen/Slide Sizemm500*396890*396880
Ejector Distancemm707070
Ejector ForceKN(tf)21.5(2.2)26.5(2.7)26.5(2.7)
OthersSystem PressureMpa(kgf/cm2)13.7(140)13.7(140)13.7(140)
Oil Tank CapacityL140180230
Electric PowerKW(HP)7.5(10)11(15)11(15)
Machine DimensionsL*Wmm2016*12651650*13801755*1598
Machine Weighttf1.82.22.

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