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Chengdu Xinwei Welding Technology Co., Ltd.

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China Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly
China Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly

  1. China Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly
  2. China Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly
  3. China Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly
  4. China Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly

Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly

  1. MOQ: 1 set
  2. Price: $21,000-23,000 / set
  3. Get Latest Price
Advantage Projection Welder
Supply Ability 10 sets per month
Primary Voltage 220V/380V/415V
Feature Welding Automatic Machine
weight (kg) 1900
Delivery Time 25-35 working days
rated capacity 40-250KVA
warranty 1 Year
After Warranty Service Video technical support, Online support and Spare parts
Payment Terms L/C,D/A,D/P,T/T,Western Union
Product name Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly
Packaging Details wooden box
rated duty cycle 50%
After-sales Service Provided Free spare parts, Field installation, commissioning and training
Brand Name Xinwei
Place of Origin Sichuan, China
Certification CE, RoHS, ISO

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  1. Product Details
  2. Company Details

Product Specification

Advantage Projection Welder Supply Ability 10 sets per month
Primary Voltage 220V/380V/415V Feature Welding Automatic Machine
weight (kg) 1900 Delivery Time 25-35 working days
rated capacity 40-250KVA warranty 1 Year
After Warranty Service Video technical support, Online support and Spare parts Payment Terms L/C,D/A,D/P,T/T,Western Union
Product name Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly Packaging Details wooden box
rated duty cycle 50% After-sales Service Provided Free spare parts, Field installation, commissioning and training
Brand Name Xinwei Place of Origin Sichuan, China
Certification CE, RoHS, ISO
High Light 3 Phase Automatic Spot Welder250KVA Automatic Spot WelderStainless Steel automatic spot welding machine

Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly

Heavy-Duty MFDC Projection Welding Workstation with Dual-Path Rod and Ring Auto-Feeding — Servo Force Control, 40-250KVA, Galvanized and Stainless Steel Capable

Feeding
Dual-Path Rod + Ring
Force Control
Servo / Proportional
Power
40 - 250 KVA
Application
Piston Rod Retaining Rings



Why Piston Rod Ring Welding Demands Precision Force Control

Automotive piston rod assemblies present a unique welding challenge: the retaining ring must be projection-welded onto the rod with sufficient strength to withstand millions of load cycles in service, yet the heat input and electrode force must be precisely controlled to avoid distorting the precision-ground rod surface. A single over-pressurised weld can scrap a machined rod worth significantly more than the welding operation itself.

This Xinwei MFDC projection welding workstation solves the problem through three integrated systems. The dual-path automatic feeding system independently delivers rods and rings to the welding position. The servo or proportional valve force control system maintains the exact programmed electrode force throughout each weld cycle, compensating for part tolerances. The MFDC power source provides concentrated heat input with minimal spatter, protecting the rod surface finish while ensuring full-strength projection weld nuggets on galvanized and stainless steel materials.

Key Engineering Features

1. Dual-Path Independent Feeding: Rods and Rings Delivered in Sync
The system features two separate automatic feeding paths: one for piston rods and one for retaining rings. Each path independently singulates and positions its component. The synchronised delivery ensures that both parts arrive at the welding fixture in the correct orientation and sequence, ready for the projection welding cycle. This eliminates the manual coordination step that creates bottlenecks in semi-automatic stations.
2. Servo or Proportional Valve Force Control: Protecting Precision Surfaces
Unlike pneumatic-only systems where force can vary with air supply pressure, the servo or proportional valve system maintains closed-loop force control. The electrode applies exactly the programmed force, no more. This is critical for piston rods where the ground surface must remain undamaged. The system compensates for minor part thickness variations without exceeding the safe force window.
3. MFDC with Concentrated Heat Input: Strong Welds, Clean Surfaces
The Medium Frequency Direct Current power source (40-250KVA) delivers a precisely controlled waveform that concentrates heat at the projection contact points. This creates full-strength weld nuggets while minimising the heat-affected zone. For galvanized sheet components, the controlled heat input prevents excessive zinc burn-off that can compromise corrosion resistance. The result is a strong projection weld with a clean surrounding surface.
4. Complete Workstation: Integrated Feeding, Welding, and Quality Control
The 2600mm-long workstation integrates feeding, welding, and optional inspection into a single production cell. The intelligent HMI provides production monitoring, recipe management for different rod/ring combinations, and fault diagnostics. This turnkey approach means the cell can be deployed on the production floor with minimal integration engineering on the customer side.

Application Focus: Automotive Suspension and Steering Components

This workstation is purpose-engineered for the projection welding of piston rods to retaining rings in automotive suspension (shock absorbers, struts) and steering system components. The dual-path feeding, precision force control, and MFDC technology directly address the quality and throughput requirements of Tier-1 and Tier-2 automotive suppliers producing these safety-critical assemblies.

Technical Specifications

Parameter Specification
Rated Capacity 40 - 250 KVA
Input Voltage 220V / 380V / 415V (3-phase)
Duty Cycle 50%
Welding Technology MFDC Inverter (Medium Frequency DC)
Force Control Servo or proportional valve (closed-loop)
Feeding System Dual-path automatic: rods + rings
Welding Materials Carbon Steel, Stainless Steel, Galvanized
Dimensions 2600 x 1600 x 1900mm
Weight 1900kg
Warranty 1 Year
Certifications CE, RoHS, ISO
Ready to Upgrade Your Piston Rod Assembly Line?
Send us your piston rod and retaining ring samples for a free welding test with process parameter documentation.
Joe@xwweld.com | +86-13378111895
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Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2003

  • Total Annual:

    $35000000-$50000000

  • Employee Number:

    70~95

  • Ecer Certification:

    Verified Supplier

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  • Chengdu Xinwei Welding Technology Co., Ltd.
  • No.538 Xingfu Road,Xindu,Chengdu,China
  • https://www.xwwelder.com/

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