Hebei Mingmai Technology Co., Ltd.
About
Hebei Mingmai Technology Co., Ltd., operating under the MM-Tech and SWT brands, is a Shijiazhuang-based manufacturer of thermoplastic pipe welding and fusion equipment. Established in 2011 as a trading company, Mingmai opened its own 5,000-plus square meter factory in 2019 and now employs approximately 100 people serving over 3,000 customers across 100 countries. The product line covers the full spectrum of plastic pipe joining: butt fusion welding machines spanning 63mm to 1600mm diameter in manual (SWT-V M), hydraulic (SWT-V H), automatic (SWT-V A), and high-pressure (SWT-V SHP) configurations, with trailer-mounted Mazinger models for field deployment. Electrofusion machines in the ZDRJ series handle 20mm to 800mm diameter with barcode scanning and 6-phase programmable welding. Additional products include socket fusion machines for PPR pipe, plastic sheet butt fusion machines (SWT-PH series) for tank fabrication up to 6,000mm width, sheet bending machines (SWT-ZW series) for 3–30mm thickness, geomembrane welding machines (SWT-NS series) for landfill and pond liners, extrusion welding guns, hot air welding equipment, and TPO/tarpaulin welders. Supporting tools range from pipe cutters and squeeze-off tools to hydrostatic test pumps (PR50A) and geomembrane leak detection equipment. All products carry CE certification and comply with DVS 2207, ISO 21307, ISO 13950, and ASTM F2620 standards with a two-year warranty.
Key Products
Hydraulic, manual, and automatic butt fusion welders for joining HDPE/PP pipes from 40mm to 1600mm diameter, including trailer-mounted Mazinger series for field use.
Digital MCU-controlled electrofusion welders from 20mm to 800mm with barcode scanning, 0.5% precision, USB data transfer, and 6-phase programmable welding.
PPR pipe socket fusion welders for residential plumbing applications including bench and portable models with heating tools and die heads.
Butt fusion machines for thermoplastic sheets up to 6000mm width, used for tank building, aquaculture containers, fire truck water tanks, and chemical storage vessels.
Thermoplastic sheet bending machines for 3-30mm thickness capable of 0-95 degree bends in PVC, PE, PP, and twin-wall sheets.
Hot wedge welders for HDPE/PP geomembrane liners used in landfills, fish farm ponds, sewage treatment, and dam construction applications.
Handheld extrusion welders using 3mm and 5mm welding rods for HDPE, PVC, PP, and geomembrane seam welding with digital temperature display.
1600W-3400W hot air guns and welders for thermoplastic sheet and membrane welding with adjustable temperature control from 20-600 degrees C.
Semi-automatic and manual welders for PVC banners, TPO roofing membranes, and canvas materials with 40mm overlap welding capability.
Welding machines for fabricating HDPE/PP elbows, tees, crosses, and wyes in workshop settings, plus pipe band saws and saddle fusion equipment.
Rotary pipe cutters, guillotine cutters, pipe debeaders, squeeze-off tools, peeling tools, chamfering tools, and alignment fixtures for thermoplastic pipe preparation.
Hand-operated and industrial hydrostatic pressure test pumps for leak testing of welded pipe systems and tanks.
Electronic tensiometer and high-pressure leak point detectors for quality assurance of welded geomembrane installations.
Data logging systems for automatic butt fusion machines recording welding parameters for quality assurance and traceability.
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