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LSR Overmolding with Plastic Resin

1. LSR overmolding with PC. The mold temperature of LSR is 120℃, so this is easy to let hard resin PC deformation and scratch the hard resin. But we still controlled very well and meet the drawing.
2. There are post processing like ultrasonic welding and assembly.
3. High sealing requirement for the device after assembly.

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Product Introduction

Successful Experience

34 years focusing in plastic injection molds

1. We have a lot of experience in the overmold. Normally we use LSR overmold with PC, PA66+GF PBT.

2. We not only build LSR overmold with medical, but also automotive, electrical etc.

3. Equipped with Arburg and Engle injection machine, Nexus dosing system, normally what we used cold runner is Moldmaster, but we developed the cold runner with Husky together as well.

Core Capabilities

Which set us apart from competitors

1. Factory equipped with top-class machines to guaranty for stable quality, such as YASDA, Mikron, MORISEIKI, Agiecharmilles, SODICK, MAKINO, Carl Zeiss, Sumitomo, ARBURG, ENGEL etc.

2. Strong Capabilities of Design and Manufacturing: 30 senior molds designers, average mold design experience is 8 years. Experienced in high precision, tight tolerance and complex molds.

3. Experienced bench worker to fitting the mold to make sure the parting line will be controlled very well.

Quality Control

Quality is always the first

Operational process validation that IQ, OQ, PQ for the medical device, which to ensure the stabilized quality in mass production.

Validation overview	IQ	1) Verification of the qualification of the Operator, Injection machine, Measurement equipment, Resin material, Mould(Tools) and Production environment 2) Define which mould will be verified on a specific injection machine 3) Verify Utilities and Environment prior to OQ/PQ testing
	OQ	1) Define acceptance criteria for Operation Qualification 2) Test the lower, upper injection parameter according to Standard trial mould procedure and history experience 3) Run the upper and lower limit for at least 4 hours, measurement of the CTQ dimension and appearance inspection (attributes) 4) If the inspection result is out of spec, investigate and establish a corrective action, re-run the process batches using the lower and upper limit parameter again 5) Setting the nominal parameter according to the result of successful run upper and lower parameter, and Scientific trial mould procedure in T1, T2;
	PQ	1) Define the acceptance criteria of PQ 2) Run three batch (four hours each) at the nominal setting 3) Measure and verify the CTQ dimension and study the CPK for three batches 4) Inspect the appearance of the product in three batches

SJ Group factory has the certificates of ISO9001, IATF16949 and ISO13485.

Main Partners in Molds components

Moldbase	HASCO standard, European standard, world standard
Moldbase material	LKM, FUTA, HASCO, DME
Texture	According to customer requirements. VDI, Texture (MT standard), High Gloss Polishing
Cavity Core steel	P20,H13, 1.2344, ASSABAS136,Starvax 420
Hot Runner Brand	HUSKY, INCOE, Mold master, Manner, Synventive, HRS etc