Overview
Hydraulic injection molding machines use hydraulic systems to inject molten plastic into molds. They deliver high clamping force and are well suited for large, thick-walled, or high-volume parts where brute force and durability matter. Key specs include clamping tonnage, shot size, injection pressure, screw diameter and control type. Used hydraulic machines can offer strong value but require careful inspection of hydraulics, seals, screws, and controls.
FAQ
What should I check when buying a used hydraulic injection molding machine?
Review maintenance records, cycle count, condition of hydraulics (leaks, pumps, valves), screw and barrel wear, platen and tie-bar alignment, control panel and wiring, and spare-parts availability. Ask for operational videos or a trial run.
How do I arrange safe shipping for a hydraulic injection molding machine?
Drain hydraulic and cooling fluids, secure moving parts, protect electronics, and use a heavy-equipment transporter with cranes or forklifts. Provide exact weight and dimensions, insure the shipment, and check permits for oversized loads.
What regular maintenance keeps a hydraulic injection molder reliable?
Daily checks: hydraulic oil level, leaks, heater function and temperature stability. Weekly/monthly: change filters, inspect hoses and seals, grease points, and test safety interlocks. Periodically perform oil analysis, screw/barrel inspection, and control calibration per manufacturer guidelines.