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Necking welder

Welding · LPG cylinder production line

Welding
Necking welder
A purpose-built welding machine composed of a CO2 gas-shielded welder with skirt and base welding fixtures, used for welding at the cylinder neck (valve seat) area. Simple in structure, stable in performance and easy to operate. Air pressure 0.6–0.8 MPa, cycle time about 12–16 seconds per piece.
  • CO2 gas-shielded welding—
  • Skirt & base welding fixtures—
  • Cycle time12–16 s/pc
  • Lead time60–90 days
  • Warranty12 months
Key Features

What we got right in the design

Symmetric twin-torch welding

Both sides of the circumferential seam arc at the same time, balancing heat input so ovality change stays small and no re-rounding pass is needed.

Arc sensing seam tracking

The torch follows the joint in real time, so fit-up variation in incoming parts does not turn into weld deviation.

Recipe-based parameters

Each cylinder type and plate thickness has a stored program; a size change is a recipe call, not a manual setup.

Specification

Technical data

Standard machine data below. Non-standard sizes can be tooled to your cylinder drawings.

Air pressure0.6–0.8 MPa
Throughput12–16 s/pc
Power supplyAC 380 V / 50 Hz, 3-phase + N + PE (customized to destination)
ProtectionControl cabinet IP54, actuators IP65
Lead time60 – 90 days after contract effectiveness
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Tell us your cylinder and target output

The more specific your information, the more accurate the quote. Ideally include: cylinder size (1 / 5 / 12.5 / 15 / 25 / 50 kg), sheet thickness, target daily output, existing process and available floor area.

  • ResponseWithin 4 working hours
  • ProposalPreliminary layout in 48 h
  • ConfidentialityNDA available