Energy & Mining
Middle-trough welders, wind tower handling, laser cladding and plasma overlay for wear parts.
Welding and surface engineering for energy & mining
Coal mining scraper conveyors, wind towers, hydraulic supports, valves and wear parts combine heavy structural welding with demanding surface protection. Shuanghua supplies dedicated middle-trough welders, shell handling equipment and a full range of laser cladding, PTA and MIG/MAG overlay systems.

What manufacturers need
Long straight seams
Middle troughs require synchronised twin-torch welding with stable penetration.
Large shells
Wind towers and vessels need rotators and manipulators sized to the part.
Wear & corrosion
Shafts, rolls, valves and moulds need hard, dense overlay layers.
Repair cost
Restoring high-value parts is far cheaper than replacing them.
Equipment configuration
Middle-trough welding
Single- or double-column machines with twin synchronised torches, pulse welding, water-cooled torches and PLC control.
Shell welding
Self-aligning rotators and column & boom manipulators for towers and vessels.
Laser cladding
SH-GQ-F6JQR robotic and SH-GQ-FB horizontal laser cladding (3–12 kW, 0.5–1.5 m²/h).
Plasma & MIG overlay
SH-GM-400A and SH-ZH-400A PTA overlay, MAG/MIG circumferential overlay and robotic flange overlay.
Products for energy & mining
Welding Manipulator (Column & Boom) / Welding Operation Center
SH-ZH-400A Plasma Cross-Slide Overlay Welding Equipment
Related application cases

Idler (Roller) Bracket Welding Robot Workstation
Robotic welding of conveyor idler brackets (roller supports) for mining and bulk handling, a high-volume part with many identical seams.

Motor Housing Welding Robot Workstation
Robotic welding of electric motor housings; the positioner rotates the housing for circumferential and bracket seams.

Stator Core Parametric Welding Robot
Parametric robotic welding of stator cores: the welding program is generated from core parameters, so new sizes do not require manual teaching.
Plan your energy & mining welding line with our engineers
Send us your workpiece drawings, material, thickness and target output — we will propose a configuration and quotation.

