One Machine, Any Fastener — The High-Stability CD Workhorse for General Production

Most production shops do not weld only one type of fastener. Today it is M8 nuts on steel brackets, tomorrow M10 bolts on thicker plate, next week weld screws for a different customer. This capacitor discharge projection welder handles the full range — nuts, bolts, screws and studs in multiple sizes — on a 2000KG high-rigidity platform designed for years of stable daily use.

Contract manufacturers and mixed-production fabrication shops face a practical challenge: different orders require different fasteners on different materials. A machine that only handles one fastener type sits idle between jobs. The high-stability CD projection welder is built for this reality — switch from M6 weld nuts to M10 bolts to M12 flat-head screws by changing electrodes and weld schedules, not machines.

1. Millisecond CD Energy Control for Any Fastener Size

The capacitor bank charges to a precisely controlled voltage and discharges in 10-50ms. Weld energy is programmable per fastener type — lower energy for M6 small screws, higher energy for M12 heavy nuts. Once parameters are set, the machine delivers the same energy every cycle regardless of grid conditions or production timing.

2. Wide Fastener and Material Compatibility

The system handles projection welding of flat-head screws, hex nuts, weld nuts, bolts and studs across multiple specifications. Material compatibility spans carbon steel, stainless steel, galvanized steel and aluminum alloys. Quick-change electrode tooling supports rapid switchover between fastener types without recalibrating the entire machine.

3. 2000KG Frame — The Mechanical Foundation of Weld Stability

The ultra-heavy 2000KG high-rigidity machine frame does the work that lighter machines cannot: it absorbs the mechanical forces of welding, suppresses vibration in the electrode path, and maintains consistent electrode-to-workpiece contact. This structural foundation ensures that whether you are welding small screws or large nuts, the machine platform stays steady — cycle after cycle, year after year.

4. Manual Load, Automatic Weld — Flexibility Without Quality Variation

The operator handles workpiece loading and unloading while the machine independently executes squeeze, discharge, hold and release. This separation means operators can work at their natural pace on varied parts, while the machine always applies the correct weld schedule. Quick-change fixturing supports different workpiece geometries without reprogramming.

Contract Metal Fabrication with Mixed Fastener Orders

Job shops and contract manufacturers run short production batches with different fastener requirements on the same equipment. The CD projection welder''s stored weld schedules and quick-change electrode tooling enable fast switchover between M6 weld screws for one order and M12 hex nuts for the next. One machine covers the full range of fastener projection welding that would otherwise require multiple specialized setups.

General Industrial Fastener Welding Across Materials

From carbon steel brackets with M8 nuts to galvanized panels with M10 bolts to stainless components with M6 screws, the CD system handles the material and fastener variety common in industrial fabrication. The short pulse preserves galvanized coatings and avoids heat tint on stainless, while the 2000KG frame maintains electrode stability across all material types.

Medium-Volume Production with Daily Part Changes

Manufacturers producing hundreds rather than thousands of identical parts per day need equipment that adapts to changing production schedules. The manual load/auto weld operating mode supports this flexibility — operators can switch between different workpiece fixtures during a shift while the machine consistently applies the correct weld parameters for each part number. Suitable for hardware manufacturing, electrical enclosure fabrication and general metal assembly operations.

Xinwei Welding Technology Co., Ltd. operates an 18,000 square meter manufacturing facility with a dedicated R&D team of over 20 engineers. ISO 9001, CE and RoHS certified. Serving customers in more than 30 countries worldwide.

Every CD projection welding machine undergoes multi-cycle weld testing on customer-representative fastener samples before shipment. The 2000KG machine frame is welded with internal reinforcement ribs for long-term structural rigidity — designed to maintain electrode alignment and weld consistency through years of daily production use.

Send us your fastener samples with the sheet metal you use in production. Our engineers will develop CD welding parameters for each fastener type and provide a complete quality report including weld nugget cross-sections and pull-out test data — free of charge.

Send your fastener samples for a free CD welding test

✓ Multi-Cycle Weld Consistency Testing Per Machine Before Shipment

✓ Weld Nugget Cross-Section Inspection on Customer-Supplied Fastener Samples

✓ Pull-Out Force Verification Across Multiple Fastener Types

✓ Frame Rigidity and Electrode Alignment Verification

✓ ISO 9001:2015 Certified Quality Management System

✓ CE and RoHS Compliance for International Markets

Q: How quickly can I switch between different fastener types?

Fastener changeover involves two steps: loading the appropriate weld schedule from stored parameters and changing the electrode tooling to match the fastener geometry. Weld schedules are stored digitally — no recalibration required. Electrode change is mechanical and typically completed in minutes. The machine is designed for daily changeover in mixed-production environments.

Q: Can this machine weld both small screws and large bolts?

Yes. The capacitor discharge system provides programmable energy output, allowing lower energy settings for small M6-M8 screws and higher settings for M10-M12 bolts and nuts. The electrical proportional valve adjusts electrode force accordingly. The four DN models (100-250KVA) provide options matched to your typical fastener size range and material thickness.

Q: How does the 2000KG frame improve daily production?

In lighter machines, the mechanical forces of repetitive welding gradually cause electrode misalignment, inconsistent pressure and variable weld quality. The 2000KG frame mass and internal reinforcement ribs absorb these forces, maintaining the electrode-to-workpiece relationship through thousands of cycles. This structural stability is the physical foundation for consistent fastener welding through years of daily use.

Q: What materials can this machine weld fasteners to?

The CD system handles carbon steel, stainless steel, galvanized steel and aluminum alloy sheet metal. The short pulse preserves galvanized coatings on zinc-plated material and avoids heat tint on stainless steel. Welding parameters are developed for your specific material grade and thickness combination during sample testing.

Tell us your fastener types, sizes, material grades and production volumes. Our engineers will recommend the DN model and develop CD welding parameters for each fastener in your production mix.

12-Month Warranty | Free Fastener Welding Test | Factory Direct from Xinwei