Fine Blanking Press Services

Full Scope of Refurbishment Work

• ✓ Guiding column regrinding, bushing re-boring, and ram parallelism restoration to within 0.02 mm/1,000 mm — the tolerance that directly determines part flatness and edge quality
• ✓ Hydraulic pump, proportional valve, and cylinder overhaul — Bosch Rexroth pumps reconditioned or replaced, NOK/Trelleborg seals throughout, cylinder bores honed to restore surface finish
• ✓ Cracked or worn frame repair welding with PWHT (post-weld heat treatment) and stress-relief annealing, verified by ultrasonic or magnetic particle inspection
• ✓ Control system retrofit: obsolete relay logic or 1990s-era PLC replaced with modern PLC (Siemens/Beckhoff) and touchscreen HMI, preserving all hydraulic safety interlocks and stroke sequences
• ✓ Servo feeder and lubrication system upgrade — Lenze servo drive with SICK encoder replaces worn mechanical feed, centralized lubrication restored for consistent die life
• ✓ Repainting, re-wiring to current IEC standards, and safety guarding upgrade with CE-compliant light curtains and two-hand operation circuits
• ✓ Post-rebuild load testing at 100% rated tonnage with precision verification report — ram parallelism, tonnage accuracy, and stroke repeatability documented before sign-off

Remote Diagnosis & Technical Support

Our remote diagnosis service connects to your press control system to read PLC alarm codes, hydraulic pressure curves at each stroke phase (fast approach, shear, V-ring engagement, counter-pressure, ejection), and servo encoder position data in real time. This allows our engineers to assess faults before dispatching a field team — resolving 60-70% of reported faults without an on-site visit.

What is included: Remote PLC/HMI connection, alarm log analysis with timestamp correlation, hydraulic pressure curve review against baseline, servo feed accuracy diagnosis with pitch deviation mapping, and a written condition report with recommended action and estimated cost. Response within 4 hours during business hours (GMT+8).

Compatibility: Available for HS-FINEB presses and major brand machines with PLC-based controls (Siemens, Mitsubishi, Fanuc). For legacy relay-based controls on older Feintool GKP or Mori Iron presses, we provide phone-based troubleshooting with photo and video support, supplemented by on-site assessment when needed.

Comprehensive Parts Inventory

We maintain a comprehensive spare parts inventory for HS-FINEB and major brand presses, including Bosch Rexroth hydraulic pumps, proportional valves, NOK and Trelleborg seal kits, self-manufactured guiding columns and bushings, PLC modules, HMI panels, SICK and Lenze encoders, and servo drives. Critical seals and wear parts are stocked for same-week dispatch — because a press down for a $200 seal costs $20,000 per day in lost production.

Lead times: Stocked parts ship within 3-5 business days. Custom-manufactured mechanical parts (guiding columns, bushings, die cushions) typically 2-4 weeks, with material certification (EN 10204 3.1) provided on request. All hydraulic components are traceable to named suppliers — no generic substitutions on critical-path parts.

Tooling Protection Systems

Tooling protection sensors detect misfeeds, slug ejection failures, and material thickness variations before they cause $20,000-$80,000 die damage events. Our retrofit kits install on both HS-FINEB and legacy presses, integrating with the press control to trigger immediate stroke interruption within milliseconds when an anomaly is detected.

Protection modes: Misfeed detection via optical sensor at the die entry — catches a strip that stops short or overshoots by more than 0.05 mm. Slug pulling detection via capacitive sensor in the die cavity — identifies when a punched slug adheres to the punch face instead of ejecting through the die. Overload monitoring via load cell in the ram — detects force spikes from double-feeding, misplaced slugs, or material thickness variation, triggering stroke reversal before the die bottoms out. Sensor types: Optical, proximity, capacitive, and load-cell based options depending on die configuration and part geometry.