Spin Trim Deflashing Machine

Spin trim deflashing machine uses the principal of aerodynamics and centrifugal force to remove the flashes automatically with high spinning action. The machine can be widely applied for deburring process of rubber, silicone, fluro rubber parts e.g. O-rings, round shaped etc.

Spin trim machine does not require liquid nitrogen or blasting media for flash removal. It is a single process, economical machine for flash removal and/or can also be used as cost reducing first stage before cryogenic deflashing process.

Spin trim machine are used for molds having tear trim design with minute thin flash that can be tear to remove easily without excess pressure, force if done manually. Parts should be of uniform structure.

Parts required for deflashing are placed into the cylindrical compartment from the top of the machine and once the parameters are set, the disc spins the rubber parts at a very high speed with air pressure. The resultant centrifugal force causes the rubber parts to collide with each other results into separation of flashes from the parts. The deflashed parts and flashes exit via a chute intro a bin or a separator unit, having perforated mesh sheets of different hole size from where the parts can be collected.

The machine has PLC, HMI and VFD controlled operation with 7” color touch screen for ease of usage. It is also equipped with automatic self lubrication system for non stop trimming with motor speed up to 6000rpm to ensure reliable performance.

Ulai's unique approach — trial before purchase

Ulai does not sell deflashing machines without first understanding your specific parts. Our standard process is:

• You send us sample moulded parts — with flash, as they come off your press
• We run controlled trials on our in-house deflashing machines at our facility
• We provide a detailed trial report with before-and-after photographs, processing parameters used, and machine recommendations
• Only then do we recommend the right machine, configuration, and media for your application

This process means Ulai customers buy machines that are proven to work on their specific parts — not machines purchased on specification sheets alone. We have conducted trials for clients in India and internationally, with machines installed across USA, Romania, Italy, Germany, UAE, Saudi Arabia, and across India.

Mould optimisation support

Ulai also assists customers in optimising their mould designs for cryogenic or spin trim deflashing — specifying the right parting line geometry, gate size, and flash thickness targets that allow automated deflashing to work reliably. We have established relationships with mould makers who design specifically for cryogenic deflashing criteria — a service we offer at no additional cost to machine buyers.

Applications — materials and parts

• EPDM, NBR, NR, neoprene, and silicone (LSR / solid silicone) rubber parts
• Thermoplastic elastomers (TPE, TPV) — moulded parts with fine parting line flash
• O-rings, seals, and gaskets — automotive and industrial
• Automotive: engine mounts, bushings, grommets, boots, dust caps
• Electrical: connector seals, wire seals, grommet assemblies
• Medical: silicone device components, stoppers, bellows
• Consumer: bottle caps, closures, soft-touch overmoulded parts

Industries served

• Automotive Tier 1 and Tier 2 suppliers — sealing and vibration management components
• Rubber goods manufacturers — O-rings, gaskets, industrial seals
• Silicone moulders — LSR and HTV silicone precision components
• Electrical and electronic component producers
• Medical device manufacturers — in validated cleanroom environments