PTFE Ring Moulding Machine

How this press is built

Engineered to achieve void-free internal structure in backup rings & chevron packings (Engineered to client drawing envelope (Build HSE-508)), the PTFE Ring Moulding Machine utilizes a heavy-duty 136 Ton hydraulic frame with variable-frequency motor control. The ram advances swiftly to the powder contact point, then switches automatically to tonnage mode, applying uniform consolidation across a 132-second dwell cycle. Decompression is metered through proportional relief valving to eliminate tensile stress rebounds, after which a bottom-mounted stripper assembly lifts the part cleanly from the die.

Material behaviour under compaction

Because virgin & filled PTFE fluoropolymer resin requires substantial compaction depth prior to sintering, the press daylight and stroke are sized to accommodate deep powder cavity charges. Precision pressure regulation ensures uniform molecular rearrangement without inducing internal shear planes or compaction voids.

Tooling and die design

Reinforced bolster plates accommodate both single-cavity and multi-cavity dies for backup rings & chevron packings. Cavity surfaces are diamond-buffed to high luster, ensuring that green preforms release cleanly without scoring or surface roughness.

Sizing and machine selection

Engineers evaluating the PTFE Ring Moulding Machine should supply drawing tolerances, raw resin grade, and expected batch volume. We review hydraulic force parameters (136 Ton standard) and provide complete engineering documentation and tooling layouts.

Quality checks and inspection

Quality assurance protocols include full-pressure holding tests, ultrasonic cylinder weld inspection, platen parallelism checks across 5 bolster points, and trial sample pressing witnessed at our Dahegam works prior to dispatch.

Installation and commissioning

Our commissioning package includes complete technical manuals, electrical wiring diagrams, hydraulic schematics, and on-site support by factory engineers to ensure smooth machine startup and comprehensive operator training.

Export packing and lead time

Built for global export from India, the PTFE Ring Moulding Machine is wired with multi-voltage electrical configurations (380V–480V / 60Hz 3-Phase) and equipped with CE-compliant optical light curtains. Machines are packaged with VCI anti-corrosion barrier wrapping inside seaworthy wooden crates for secure container shipping from Mundra or Nhava Sheva ports.

Maintenance and spare parts

Regular upkeep involves hydraulic fluid condition monitoring, daily column guide lubrication, and inspection of cylinder seals every 12 months. All hydraulic valves and electrical components use globally standardized industrial brands for easy maintenance.

Safety and guarding

Plant safety compliance is ensured by optical safety barriers, two-hand cycle start controls, hydraulic burst-protection valving, and illuminated emergency stop actuators.

Specifications