HR-25KW-F1 750mm Deep Throat HF Welder for Heavy Tarpaulin & Large Inflatable Boat

Author: Li Gong, Senior Application Engineer, DONGGUAN HIPOWER LTD

Published: Jul 08,2026 | Updated: Jul 08,2026

HIPOWER has specialized in high-frequency welding equipment R&D and manufacturing for over 27 years, providing customized solutions for tarpaulin, membrane and inflatable goods factories across more than 60 countries worldwide.HIPOWER HR-25KW-F1 Deep Throat HF Welder: Powerful Welding Solution for Heavy Thick Tarpaulin & Large Membrane StructuresFactories producing multi-layer thick truck tarpaulins, heavy tension membranes, large inflatable boats and flexible gas tanks face critical issues with low-power HF machines: insufficient energy fails to fully fuse thick fabrics, causing delamination, water leakage and easy tearing; narrow throat limits wide roll feeding, segmented splicing reduces productivity and waterproof performance. To solve these pain points, DONGGUAN HIPOWER LTD launches HR-25KW-F1 750mm standard deep throat HF heat sealer. Equipped with 25KW super power and 750mm wide feeding bin, it is specially developed for continuous long-seam welding of heavy-duty thick tarpaulins and oversized inflatable products, becoming the core high-power welding equipment for outdoor waterproof soft goods manufacturers.Core Technical Features of the HR-25KW-F11. Stable 25KW High Power Output with 8T25RA TubeThe HR-25KW-F1 adopts 25KW high-power HF generator and premium 8T25RA electron tube, running on dedicated 13.56MHz industrial frequency. European square oscillation box delivers consistent abundant energy without power decay under 24/7 non-stop operation. It deeply fuses multi-layer thick PVC/TPU fabrics into an integrated weld with outstanding waterproof and tear resistance, ideal for heavy truck covers and giant inflatable pools.2. 750mm Standard Deep Throat & Dual-Side Feed RollersStandard 750mm free space behind the feeding bin, dual-side rollers fitted on both worktable and bottom bin. Full-width tarpaulin rolls can pass through the machine directly without pre-cutting, eliminating water leakage risks from segmented splicing. Rollers reduce fabric dragging friction to avoid wrinkles and shifting during long continuous welding.3. Laser Positioning + Rear Safety Press PlatenBuilt-in laser light accurately marks welding tracks to guarantee uniform seam width for wide thick fabrics. The grounding press platen is mounted behind the welding mould to completely avoid hand injuries from hot mould contact, complying with global factory safety standards for long-hour mass production.4. 5557 Anti-Flash Protection & Air Intake Dust FilterHigh-sensitivity 5557 instant spark protection cuts HF power within milliseconds during abnormal flash, protecting expensive moulds and internal oscillation components. Built-in air intake filter blocks workshop dust to reduce circuit failures, extending service life of the whole machine and oscillation tube for round-the-clock production.5. Optional ATS Auto-Tuning System for Multi-Thickness MaterialsOptional ATS automatic tuning system automatically identifies thin landscape film or multi-layer heavy tarpaulin, matching optimal HF output power without manual frequency adjustment. One machine handles both light advertising film and heavy truck canvas to save extra equipment investment.6. Full Non-Standard Customization + ODM/OEM SupportElectrode size, clamping pressure, power configuration and machine dimension are fully customizable, private label ODM & OEM service available. We can lengthen electrodes and widen worktables according to customer tarpaulin width and seam length, meeting personalized production lines for membrane engineering and inflatable product manufacturers.Suitable Applications & Compatible Materials

Heavy tarpaulin: thick truck covers, heavy agricultural canvas, large carport membrane, engineering rain canopy

Membrane engineering: heavy tension membrane, giant landscape architectural membrane, space cable membrane, inflatable roof

Large inflatable goods: multi-layer inflatable boat, flexible gas storage tank, oversized inflatable swimming pool, drifting island

Advertising material: thick outdoor waterproof advertising film, large-format printing waterproof banner

Other multi-layer PVC/TPU coated thick waterproof fabrics for long continuous edge sealing

Main Technical SpecificationsplaintextModel: HR-25KW-F1

HF Output Power:25KW

Electron Tube:8T25RA

HF Frequency:13.56MHz

Power Supply:AC 380V/50Hz/3-Phase(Customizable)

Input Power:35KVA

Max. Clamp Pressure:1000KGS

Max. Electrode Gap:150mm

Electrode Moving Range:100mm

Upper Electrode Size:50*50*900mm

Lower Electrode Size:400*700mm

Laser Light Positioning:Included

Table Rollers:Both Sides Included

Bottom Bin Rollers:Both Sides Included

Deep Throat Free Space:750mm

Packing Dimension:L1800*W1300*H2050mm

Optional Function: ATS Auto-Tuning System, power range 5KW~35KW selectable

Remarks:Customized,ODM&OEM Accepted;Specifications subject to change without notice for improvement

Frequently Asked QuestionsWhat advantages does HR-25KW-F1 have over 10KW/15KW models?25KW high power with dedicated 13.56MHz frequency achieves deeper fusion on multi-layer thick tarpaulin and heavy inflatable fabrics, stronger waterproof & tensile welds. The standard 750mm deep throat fits regular wide tarpaulin rolls perfectly, best for mass production of thick materials.Can it fully weld multi-layer thick truck tarpaulin without water leakage?Yes, the high-power square oscillator supplies sufficient energy for deep penetration welding on multi-layer PVC/TPU, the integrated weld never delaminates or leaks to withstand long-term outdoor rain exposure.Can full-width tarpaulin rolls feed through without cutting?Absolutely, dual-side feed rollers plus 750mm wide throat allow full tarpaulin rolls to pass through continuously, no pre-slicing required.Do I need manual frequency adjustment for fabrics of different thickness?With optional ATS auto-tuning system, the machine auto-adapts fabric thickness, no repeated manual tuning needed when switching thin landscape film and heavy truck canvas.Is daily maintenance complicated for high-power machines?Air intake dust filter reduces circuit dust accumulation and failures; standard spark protection lowers mould wear. We provide 1-year full warranty plus lifetime technical support for easy daily maintenance.Contact HIPOWER for Custom Welding SolutionStandard 750mm throat 25KW tarpaulin machines and customized lengthened/widened models are available. Our professional engineers design tailored welding lines based on your thick tarpaulin and large inflatable product dimension.

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Contact Info:

Email:hipower9@hi-pwr.com

WhatsApp:+86-135-9014-6525

Tel:0769-86003636-812

About DONGGUAN HIPOWER LTDFounded in 1999 in Dongguan China, HIPOWER is a professional full-series HF welding equipment manufacturer covering 5KW~35KW deep throat tarpaulin machines, auto-track heat sealers and dual-head industrial belt HF machines. All models pass CE certification and export to over 60 countries worldwide. The high-power F1 deep throat series is exclusively designed for thick tarpaulin and oversized inflatable goods, solving insufficient fusion and low productivity problems of low-power machines, helping outdoor soft goods factories improve weld waterproof quality and production output.