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Russia Heavy Truck Forging Project

17 марта 2026 г. от
Zhang Adrian
Case Study: Russia 4000T Hot Die Forging Press Acceptance — Weirong Precision Forging
🏭 Customer Case Study

Russia · 4000T Hot Die Forging Press
Full Acceptance & Performance Verification

A leading Russian commercial-vehicle component forging enterprise conducted systematic acceptance testing on Weirong's VFP-4000 across four dimensions — performance, precision, stability, and safety. Every metric exceeded the contractual standard. The client confirmed full satisfaction and has placed a follow-on order.

4000T
Nominal Press Force
100%
Acceptance Items Passed
±0.05mm
Dimensional Accuracy
720hrs
Continuous Trial Run
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Performance Test
Rated force, SPM, energy output — all exceeded spec
Precision Test
Slide guide parallelism ≤ 0.04 mm, angular deflection ≤ 0.02°
Stability & Durability Test
720-hour continuous trial — zero unplanned downtime
Safety System Test
All protective functions responded within 50 ms
Customer Profile

Client Overview

A Tier-1 forged-component supplier to Russia's leading commercial-vehicle manufacturers, this enterprise has operated a dedicated hot-forging production line in Russia's Volga automotive belt for over 15 years.

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Russian Commercial Vehicle Forging Enterprise
  Volga Region, Russia Automotive Forgings Tier-1 OEM Supplier Hot Die Forging
Company Background
Founded in 2005, the company is a principal supplier of precision hot-forged components to major Russian truck and bus manufacturers. Its product portfolio covers crankshafts, steering knuckles, axle shafts, and differential gears — with annual output exceeding 18,000 tonnes of forged parts.
Production Focus
Specialises in medium-to-heavy forged parts (8 – 60 kg per piece) from carbon and alloy steels. Key part families include heavy-duty powertrain components and chassis structural parts for 6×4 and 8×4 commercial vehicles operating in extreme climatic conditions.
Equipment Background
The plant previously relied on legacy Soviet-era forging presses, supplemented by European imports. A programme of capacity expansion and equipment modernisation prompted the search for a new 4000-tonne hot die forging press to replace ageing tonnage and support new product lines.
Why Weirong
After evaluating four press manufacturers across two continents, the client selected Weirong based on: (1) proven 4000T reference installations, (2) CE / ISO 9001 certification, (3) competitive delivery timeline, and (4) Weirong's commitment to on-site commissioning and post-sale technical support.

Background & Requirements

The Challenge

Replacing legacy press tonnage is never trivial. The client came with specific, non-negotiable technical requirements shaped by the demands of high-volume automotive forging in Russia's industrial environment.

High-Tonnage Consistency

Legacy presses delivered inconsistent striking energy across the stroke, causing flash-line variation exceeding ±1.2 mm and elevated scrap rates on crankshaft and steering-knuckle lines. The replacement press needed measurably tighter energy consistency at 4000T nominal.

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Dimensional Precision

OEM contracts require dimensional tolerances of ±0.1 mm on critical forging features. Achieving this in continuous production — not just during acceptance trials — demands a press with sub-0.05 mm slide guide parallelism and minimal angular deflection under eccentric loading.

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Continuous Operation Stability

The plant operates three shifts, 330 days per year. Any unplanned downtime on the main press directly halts multiple downstream operations. The new press had to demonstrate sustained reliability in a formal 30-day continuous production trial prior to final acceptance.

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Safety & Compliance

All new equipment must comply with Russia's GOST safety standards and EAC technical regulations. The complete safety system — light curtains, hydraulic overload protection, dual-hand control, and emergency stop — had to be formally validated before installation sign-off.

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Logistics & Installation

Shipping a 4000T press from China to Central Russia required coordinating rail freight through the Trans-Siberian corridor, customs clearance with EAC documentation, on-site foundation preparation, and installation support from Weirong engineers in under 45 working days.

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Operator Training & Handover

The plant's maintenance team had no prior experience with modern PLC-controlled forging presses. A complete training programme for operators, maintenance technicians, and automation engineers was required as part of the commissioning scope — fully delivered in Russian.


Weirong Solution

The Solution — VFP-4000 Hot Die Forging Press

Weirong supplied a complete hot-forging press system comprising the main VFP-4000 press, automated billet feeding unit, hydraulic die-clamping system, centralized lubrication, and a Siemens-based control package — with full commissioning and operator training included.

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The VFP-4000 is built on Weirong's four-column prestressed frame architecture — a design that delivers superior angular stiffness and minimal elastic deformation under full eccentric load. The eccentric-gear main drive, combined with a high-inertia flywheel, ensures consistent striking energy per stroke regardless of billet temperature or die position variation.

For this project, Weirong adapted the standard VFP-4000 configuration to the client's specific requirements: the main motor was upgraded to 450 kW with an integrated frequency converter for precise SPM control, the PLC programme included Russian-language HMI localisation, and the hydraulic overload protection threshold was pre-set to the customer's die-protection specifications. The complete package was factory-acceptance-tested in Weirong's own facility before shipment.

Key Technical Highlights
Four-column prestressed frame — angular stiffness 3× higher than two-column equivalent; eliminates slide tilt under eccentric loading
Eccentric-gear drive with 450 kW main motor — rated striking energy delivered at every stroke; adjustable SPM 16 – 25 via VFD
Eight-face precision slide guide (1200 mm guide length) — parallelism ≤ 0.04 mm, angular deflection ≤ 0.02° in all loading directions
Hydraulic overload protection (PLd-rated) — die and machine protection at every stroke; threshold adjustable via HMI without tooling
Siemens S7-1500 PLC + 15" touchscreen HMI — Russian-language interface, production counter, real-time tonnage monitoring, fault log with 1000-event history
Automatic centralized lubrication — timed dosing to all guide, bearing, and gear contact surfaces; low-level alarm integrated to PLC fault system
Hydraulic quick-die-change system — die changeover ≤ 18 minutes vs. 90+ minutes on legacy press; hydraulic clamping with interlock confirmation
CE + EAC certification documentation — complete technical file supplied for Russian GOST / EAC registration; Weirong technical team assisted with local certification authority submission
VFP-4000 — Key Specifications
ModelVFP-40000
Nominal Force40,000 kN (4,000T)
Stroke400 mm
Strokes / Min16 – 25 SPM (VFD)
Die Height (Closed)820 mm
Bolster Size2,800 × 1,900 mm
Main Motor450 kW
Frame Type4-Column Prestressed
Slide Guide8-Face, 1200 mm Length
Drive TypeEccentric Gear
Overload ProtectionHydraulic, PLd-rated
Control SystemSiemens S7-1500 PLC
HMI15" Touchscreen (RU / EN)
LubricationAutomatic Centralized
SafetyLight Curtain + Dual-Hand
CertificationCE / ISO 9001 / EAC Docs
Machine Weightapprox. 320 T
★ Factory Acceptance Test (FAT) completed before shipment
Request Full Spec Sheet →

Formal Acceptance Programme

Four-Dimension Acceptance Testing

The client's engineering team, accompanied by a third-party metrology inspector, conducted a structured acceptance programme over 18 working days following commissioning. Tests were executed against a mutually agreed Acceptance Test Plan (ATP) covering four technical dimensions. All 31 ATP line items were passed at first submission.

01
Performance & Capacity Tests
Rated Nominal Force (measured at BDC) 41,200 kN ✓ >100%
Actual Striking Energy per Stroke ≥ Spec +8% ✓
SPM Range (unloaded) 16.2 – 25.4 SPM ✓
Motor Power Draw at Full Load 427 kW (≤ rated 450 kW) ✓
Idle-to-Full-Load SPM Variance ≤ 2.1% ✓
Hydraulic Overload Trigger Accuracy ± 1.5% of set-point ✓
Clutch Engagement Response Time ≤ 35 ms ✓
Die Height Adjustment Range Full 150 mm, ±0.1 mm repeat ✓
✔ All 8 performance test items: PASSED
02
Precision & Geometric Accuracy Tests
Slide Parallelism to Bolster (4-point) 0.037 mm max
ATP Limit for Parallelism ≤ 0.05 mm
Angular Deflection Under Eccentric Load 0.018° max
ATP Limit for Angular Deflection ≤ 0.02°
Slide Vertical Straightness (full stroke) 0.025 mm ✓
Forging Flash-Line Variation (100 pcs) ± 0.05 mm max
Part Dimensional Repeatability (Cpk) Cpk = 1.68
Die Height Repeat Positioning Accuracy ± 0.08 mm ✓
✔ All 8 precision test items: PASSED — Cpk 1.68 confirms Six-Sigma-capable process
03
Stability & Durability Tests (30-Day Trial)
Continuous Trial Duration 720 hours (30 days)
Total Strokes Completed 982,400 strokes ✓
Unplanned Downtime Events 0 events
Planned Maintenance Stops 3 × 1h (per schedule)
Average Operating Temperature (main bearing) 62°C max (limit 80°C) ✓
Lubrication Pressure Alarm Events 0 alarms ✓
Overall Equipment Effectiveness (OEE) 96.4%
Parallelism Drift After 720 Hours +0.003 mm (negligible) ✓
✔ All stability items PASSED — OEE 96.4%, zero unplanned stops over 30 days
04
Safety System Verification Tests
Emergency Stop Response (E-Stop to brake) ≤ 42 ms (PLd rated)
Light Curtain Interrupt-to-Stop Response ≤ 48 ms ✓
Dual-Hand Control Release Test (100 cycles) 100% correct response ✓
Hydraulic Overload Protect. Trigger (50 tests) 50/50 correct trigger ✓
Brake Wear Indicator Alarm Activated at correct threshold ✓
Slide Unintended Descent Test No unintended motion detected ✓
Noise Level at Operator Position 83 dB(A) (limit 85 dB) ✓
EAC / GOST Compliance Sign-off Issued ✓
✔ All 7 safety items: PASSED — EAC compliance certificate issued
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Formal Acceptance Certificate Signed
The client's Chief Engineer and Quality Director co-signed the formal Acceptance Certificate on completion of the 30-day trial, confirming that the VFP-4000 had met or exceeded all 31 ATP line items across the four test dimensions. Weirong's on-site commissioning engineer was present for the full acceptance process. The certificate serves as the contractual basis for Weirong's five-year warranty activation.

Measured Outcomes

What Changed After Installation

Comparing the first six months of VFP-4000 production against the decommissioned legacy press baseline, the client's process engineering team recorded the following improvements.

60%
Scrap Rate Reduction
2.4×
Throughput Increase
96.4%
OEE Achieved
<18min
Die Change Time

We have purchased forging equipment from European suppliers for twenty years, so our acceptance bar is high. When Weirong's commissioning team proposed a 30-day continuous trial with third-party metrology, we accepted immediately — we did not expect them to be that confident. The VFP-4000 cleared every item in our ATP at first attempt. The parallelism numbers were better than any press we have ever run in this plant. Zero unplanned stops in 720 hours is something our legacy presses never achieved in their entire service life. Our board has already approved a purchase order for the second unit.

AV
A. Voronov
Chief Engineer, Russian Commercial Vehicle Forging Enterprise

Project Execution

From Contract to Accepted Production — 7 Months

The entire project, from contract signature to formal acceptance certificate, was completed within the agreed schedule of 28 weeks.

Week 1 – 2
Contract & Engineering Kick-off

Contract signed. Weirong application engineers conducted a remote technical workshop with the client's process and installation teams to confirm ATP scope, power supply specifications (10 kV, 50 Hz), foundation loadings, and Russian-language HMI requirements. Engineering freeze confirmed at end of Week 2.

Week 3 – 14
Manufacturing & Factory Acceptance Test

Main press manufacturing at Weirong's Zhejiang facility with biweekly video progress reports to the client. Week 12: client sent two engineers to Zhejiang for Factory Acceptance Test (FAT) — press run at full load for 8 hours, all ATP items verified at factory level. FAT certificate signed.

Week 15 – 18
Shipping & Customs Clearance

Press disassembled into 14 major shipping units and transported by ocean freight to Vladivostok, then rail freight to the plant's rail siding. Weirong provided complete EAC technical documentation package for Russian customs clearance. All units arrived within the 4-week shipping window.

Week 19 – 22
Foundation Preparation & Installation

Weirong dispatched a three-person installation team (mechanical lead, electrical engineer, controls specialist). Foundation anchor bolts installed and grouted per Weirong's drawings. Press assembly, alignment, electrical panel connection, and hydraulic system commissioning completed over 4 weeks.

Week 23 – 24
Dry-Run Commissioning & Operator Training

Press commissioned under dry-run (no tooling) conditions. All safety interlocks verified. 5-day operator training programme delivered in Russian: 12 press operators trained on HMI, die-change procedure, and routine maintenance. Maintenance manual and spare-parts list handed over.

Week 25 – 28
Formal Acceptance Testing (ATP Programme)

18-day formal ATP programme executed across 4 dimensions (Performance, Precision, Stability/Durability, Safety). Third-party metrology inspector engaged by client. 30-day continuous production trial completed at 96.4% OEE. Formal Acceptance Certificate co-signed by client Chief Engineer and Weirong commissioning lead.


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