CNC-Controlled Multi-Point Projection Welding Machine
Stationary CNC multi point projection welding machine for batch production. 8 head sequential welding reduces cycle time by 70 percent.
Product Introduction
The CNC Controlled Multi Point Projection Welding Machine is built for manufacturers who need consistent, high-efficiency multi-point welding in batch production. It welds up to 8 projection points sequentially in a single clamping cycle, driven by a programmable CNC controller. One operator, one clamping, eight welds — replacing what previously required multiple stations or repeated manual repositioning.
Who is this for? Automotive component suppliers welding seat frames and brackets. Home appliance manufacturers joining mounting studs to thin-gauge panels. Metal furniture producers assembling frames at scale. Electrical enclosure fabricators attaching grounding points and reinforcements. If your production line relies on multiple single-point welding stations and you are losing time and consistency between workstations, this machine is designed for your operation.
What You Gain — At A Glance
| Your Current Challenge | How This Machine Solves It |
|---|---|
| Multiple single-point stations create alignment drift between operations | All 8 points welded in one clamping cycle, zero repositioning error |
| Manual welding quality varies between operators and shifts | CNC digital control applies identical parameters to every weld, every cycle |
| High dependency on skilled welders limits production scaling | One semi-skilled operator loads and unloads; the machine handles the welding |
| Switching between different workpieces requires hours of recalibration | CNC stored programs recall full parameter sets for each workpiece in seconds |
Key Characteristics
Programmable 8-Point Sequential Welding: The CNC controller manages the complete welding sequence, applying independently set pressure and current parameters to each welding head. Every weld point on every workpiece receives identical conditions — eliminating the quality drift that manual adjustment introduces across shifts. For a component requiring 8 weld points, total cycle time is approximately 70 percent less than running 8 separate single-point welding operations.
Independent Parameter Control Per Head: Each of the 8 welding heads has individually adjustable pressure and current settings. When your workpiece has projections of different sizes or material thicknesses on the same component — common in automotive stampings and multi-gauge assemblies — each head tunes to its specific weld point. You get optimized weld quality at every point without compromising any single location to accommodate others.
Pneumatic Hydraulic Force Stabilization: A dedicated air storage tank paired with a pneumatic hydraulic booster cylinder maintains consistent welding pressure throughout each cycle, even during rapid sequential firing. Stable electrode force means stable weld nugget formation. In high-speed production, this directly reduces the rejection rate caused by pressure fluctuation — fewer rejected parts, less rework, lower per-unit cost.
Reinforced Frame For Continuous Multi-Shift Duty: The precision machined body features internally reinforced rib structures that resist deformation under repeated high-force welding. Electrode alignment stays accurate over extended production runs. Less recalibration downtime, longer service intervals, higher annual output from the same machine.
Adjustable Motion For Faster Cycles: Fully adjustable descent and ascent speeds with cushioned contact reduce operational noise and prevent workpiece impact damage. Adjustable auxiliary strokes on each head minimize non-welding travel time. Together, these optimizations squeeze wasted seconds out of every cycle — directly increasing parts per hour.
Compared To Single Point Welding
| Factor | Traditional Single Point Welding | CNC Multi Point Welding |
|---|---|---|
| Operations Per 8-Point Part | 8 separate clamping and welding cycles | 1 clamping cycle, 8 sequential welds |
| Positional Accuracy Between Points | Accumulates error with each repositioning | Workpiece fixed; zero accumulated error |
| Weld Consistency | Varies with operator attention and fatigue | CNC controlled; identical parameters every cycle |
| Operator Requirement | Skilled welder needed for quality control | Semi-skilled operator for loading only |
| Changeover Between Parts | Manual recalibration per station | CNC program recall in seconds |
Technical Specifications
| Parameter | DN-40 | DN-63 | D(T)N-80 | D(T)N-100 | D(T)N-125 | D(T)N-160 | D(T)N-200 |
|---|---|---|---|---|---|---|---|
| Rated Power At 50 Percent (KVA) | 40 | 63 | 80 | 100 | 125 | 160 | 200 |
| Rated Primary Voltage (V) | 380 | 380 | 380 | 380 | 380 | 380 | 380 |
| Secondary Voltage (V) | 5.2 | 6.7 | 7.9 | 8.3 | 8.6 | 9.1 | 10.6 |
| Rated Frequency (Hz) | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 |
| Max Short Circuit Current (KA) | 14 | 15 | 16 | 18 | 20 | 28 | 34 |
| Max Weld Power (KVA) | 62 | 86 | 170 | 280 | 300 | 330 | 410 |
| Throat Depth (MM) | 400 | 400 | 400 | 450 | 450 | 450 | 450 |
| Max Electrode Force (N) | 6000 | 6000 | 10000 | 10000 | 10000 | 12000 | 12000 |
| Working Stroke (MM) | 20 | 20 | 30 | 40 | 40 | 50 | 50 |
| Projection Clamping Plate (MM) | 125x125 | 125x125 | 200x200 | 200x200 | 200x200 | 200x200 | 200x200 |
Applications
Automotive Component Manufacturing: Multi-point projection welding of seat frame brackets, door hinge reinforcements, exhaust system mounting brackets, and sensor mounting plates. The independent parameter control for each head accommodates varying projection sizes on a single automotive stamping, while the single-clamping cycle maintains the tight positional tolerances required by automotive quality standards.
Home Appliance Metal Parts: Welding of mounting nuts and studs onto washing machine cabinets, dryer drum supports, and refrigerator compressor brackets. The CNC controlled sequence ensures uniform penetration across all points on thin-gauge appliance steel, preventing the burn-through that inconsistent manual welding causes on 0.8mm to 2.0mm sheet metal.
Metal Furniture and Shelving: Production welding of wire mesh panels to tubular frames, bracket attachments for modular shelving systems, and connector plate welding for knockdown furniture. The adjustable auxiliary stroke on each head reduces idle travel time, directly increasing output rate for high-volume furniture production lines.
Electrical Enclosure and Switchgear: Welding of grounding studs, mounting bosses, and reinforcement plates onto electrical cabinet panels and busbar assemblies. The pneumatic hydraulic force stabilization system delivers consistent weld quality on zinc-coated and galvanized steels commonly used in electrical enclosure manufacturing.
See It In Action
Frequently Asked Questions
Q: What materials and thicknesses can this machine weld?
A: The machine welds carbon steel, stainless steel, galvanized steel, and aluminum alloy sheets. Welding capacity ranges from 2.5mm plus 2.5mm (DN 40 model) up to 6mm plus 6mm A3 steel (D(T)N 200 model). For materials outside this range, send us your samples for a free welding test.
Q: Can it integrate into my existing production line?
A: Yes. The machine supports standard industrial interfaces for conveyor integration and robotic part handling. Our engineering team provides integration support including layout planning, fixture design recommendations, and signal interface documentation. Contact us with your line specifications for a customized integration proposal.
Q: How long does it take to switch between different workpieces?
A: CNC stored programs allow parameter recall in seconds. Physical fixture changeover typically takes 15 to 30 minutes depending on workpiece complexity. We provide quick-change fixture plates as an option for sub 5 minute changeovers.
Q: Do you support international delivery and installation?
A: Yes. We ship worldwide with standard delivery of 35 to 45 working days. Our overseas technical service teams in Southeast Asia and South America handle on-site installation, commissioning, and operator training. For regions without a local team, we dispatch engineers for installation or provide remote guided commissioning.
Q: What if the machine does not meet my welding requirements?
A: Before purchase, send us your workpiece samples. We will perform test welding, provide weld cross-section analysis, strength test data, and a detailed parameter report — all at no cost. This ensures the machine configuration matches your exact production requirements before any commitment.
Q: How do you handle spare parts and urgent repairs?
A: Critical spare parts are stocked for all models and dispatched within 3 working days. Technical support responds within 24 hours. For critical faults in served regions, on-site service engineers are dispatched within 48 hours. Remote diagnostic support is available for CNC controller troubleshooting.
After Sales Service
Warranty: 12 months on core components including PLC controller, welding transformer, and pneumatic system. Extended warranty options available for high-volume production environments.
Installation And Commissioning: On-site mechanical setup, electrical connection, CNC parameter configuration, and production trial run with your actual workpieces — performed by our technical engineers.
Operator Training: Comprehensive on-site training covering daily operation, CNC program creation and modification, routine maintenance, and basic troubleshooting.
Technical Support: 24 hour response via email and phone. Remote diagnostic support for CNC controller issues. On-site service dispatch within 48 hours for critical faults in served regions.
Spare Parts: Critical spare parts inventory maintained for all models. Standard parts dispatched within 3 working days. Express shipping available for urgent requirements.
Free Welding Test: Send us your workpiece samples. We perform test welding and provide detailed parameter reports, weld cross-section analysis, and strength test data — at no cost before you commit.
Company Profile
Chengdu Xinweihan is a leading welding equipment manufacturer in China with a dedicated R and D team of 20 plus engineers and an 18000 square meter manufacturing facility. We are ISO, CE and RoHS certified, serving clients worldwide with professional welding solutions. Our overseas technical service teams in Southeast Asia and South America provide on site installation, training and maintenance support.
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