PT. Sumi Rubber Indonesia (Dunlop)
Tire Manufacturing & Engineered Rubber Goods
Engineering Scope & Overview
Replacement and precision upgrading of hydraulic cylinders on tire vulcanization presses under 24/7 continuous operation.
Key Technical Specifications:
Our fabrication is backed by in-house lathes, Mazak CNC turning, and precision honing at Sunrise Bizpark workshop, Pasar Kemis, Tangerang. We are ready to re-engineer custom cylinders per your drawing and equipment samples.
Problem Decomposition & Manufacturing Solution
Operational Challenge
Hydraulic press cylinders in continuous 24/7 tire vulcanization presses suffered from pressure loss due to internal tube wall wear after years of non-stop operation.
Engineered Solution
Comprehensive cylinder retrofit: installed new precision-honed ST52 barrel tubes, renewed induction-hardened piston rods, and calibrated double-cushion dampening to absorb end-of-stroke mechanical shocks.
Outcome & Quality Assurance
Restored clamping force to 100% of OEM specifications at a fraction of the cost and lead time required for imported replacement units.
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