Plastic injection mould insert mold for Automotive battery industry

  • Suntime has made automotive battery lids and covers over 8 years.   • We are ISO9001 certificated manufacturer in mould and molding.   •  SPM has made many similar projects for Automotive battery    • Our experience, good quality and lead time helped customers get more profits  

Products Details

Product Introduction

Suntime Precision Mould has made many similar battery lids and boxes with different size. The surface is A-3 polish. T Here are many ribs inside in the battery lid and need to do very well in mould cooling so that the warpage can be controlled great. This product is used for Automotive industry. End customer is very happy with our quality and service, Suntime had the opportunity to visit them twice before Covid-19.

Project information

Appliance and Type Automotive battery box and lid, plastic insert moulding
Part name Battery Lid
Resin PP
No. of cavity 1 Cavity and 2 cavities
Mould Base S50C
Steel of cavity&Core 738H
Tool weight 950 ~ 1450kg ( 10 sets moulds)
Tool size 450*600*500 ~ 450*800*500
Press Ton 380 T
Mold life 500000
Injection system Hot runner of mold master hot tips
Cooling system 25 ℃
Ejection System Ejector pins
Special points A-3 polish,ultrasonic welding
Difficulties Warpage caused by different wall thickness
Lead time 4~5 weeks
Package Anti-rust Paper and film, little anti-rust oil and plywood box
Packing items Certification of steel, final 2D & 3D tool design, hot runner document, spare parts and electrodes…
Surface finish Mirror polishing
Trade terms FOB Shenzhen
Export to Australia


Suntime has very effective mold designers.For DFM, it can be finished within 1~2 days. Mold flow / 2D layout within 2~4 days. And 3D within 3~5 days depending on mold complexity.

Battery Box mold we made 

2D Layout

3D mold design

3D mold design

Mold flow

With customers

Customers came to Suntime many times to check the tool making and moulding, and Suntime team has visited them twice in 2016 and 2019 before the Covid to provide technical support. After our customers' introduction, Suntime team knew more about the the working process of automotive battery production. And we have more knowledge and confidence to do better for them based on our years' experience.

More details

> We used Becu for the lead post area for better cooling. > One side of the parts is thin and another side is very thick, Suntime had to control very well for the molded part's deformation. > The battery lid is ultrasonic welding to battery box. > We prepare spare parts every time before mold shipping.

Contact us

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