The SUNTECHMACH SHG800 is the large-diameter fitting machine in the SHG range, covering 500mm to 800mm PE, PP and PVDF elbows, equal tees, equal crosses and 45°/60° Y-pieces. It sits at the point where the machine stops being a workshop tool and becomes a fabrication cell: 38 KW total connected load, a 32 KW heating plate, and 5000 kg of bare machine weight before a single piece of pipe is loaded. The 32 KW plate is the key figure — at 800mm the joint area is large enough that a slower plate would lose face temperature between placement and the end of the soaking phase. Working pressure stays in the 0-16 MPa class, the hydraulic unit keeps 3 KW with an accumulator for continuous replenishment, and the pivoting plate and planing tool are what make loading a hot 800mm fitting physically manageable. The same 0-300°C independent plate control, ±5°C surface deviation, planing safety limit switch and two-channel timer carry over.

Key Features

• 1. 500-800mm Coverage — Large-diameter fittings in a single machine, without a separate plate and clamp set per size.
• 2. 32 KW Heating Plate — Joint-area-matched plate power for 800mm work, keeping the face inside the ±5°C window.
• 3. 0-16 MPa Pressure Class — Repeatable interfacial pressure on thick-wall large-diameter joints.
• 4. 38 KW Total Load — 32 KW plate + 3 KW planer + 3 KW hydraulic; plan the supply and the bay before delivery.
• 5. 5000 kg Fabrication Cell — Crane-served fixed layout with reinforced base packing for export.
• 6. Pivoting Plate and Planer — Loading and removal of heavy hot fittings handled in one movement.
• 7. Imported Teflon Coating, 0-300°C — Removable PTFE-coated plate with independent temperature control.
• 8. Two-Channel Timer — Independent soaking and cooling counts with an end-of-phase alarm.

Technical Specifications

What's Included

• 1x SHG800 HDPE fitting fabrication machine (main frame + hydraulic unit + control cabinet)
• 1x Removable PTFE-coated heating plate (32 KW)
• 1x Electric pivoting planing tool with safety limit switch
• 1x Set of clamps and inserts matching the ordered fitting types
• 1x Two-channel timer / control system
• 1x Operation manual + 500-800mm welding parameter table + warranty card

Applications

• Large-diameter water supply and transmission fittings, 500-800mm
• Pressure sewage and stormwater trunk fittings
• Gas transmission fitting fabrication
• Industrial process and cooling water pipe fittings
• Dedicated fabrication yards serving multi-site programmes
• Fabricated fittings for systems specified to ISO 4427-3 / EN 12201-3 / EN 1555 / ISO 15494

Packaging & Quality Assurance

Export-grade wooden case with reinforced steel base; every machine assembled, wired and test-run in our Hangzhou factory before shipment — hydraulic pressure test, heating plate temperature check at the set points, and planing tool safety-switch test.

After-Sales Support

• 12-month warranty (wearing parts excluded)
• Free welding parameter table prepared for your pipe sizes and SDR
• Lifetime technical support by WhatsApp / Email
• Spare parts supply for all SHG and SUNTECHMACH models
• WhatsApp: +86-13777804353 ｜ Email: sales@cnsuntech.com

Operation Guide

1. Set up and square the clamps for the fitting type on the machine rake; confirm the hydraulic circuit holds pressure with the clamps closed.
2. Load the pipe and fitting with the crane, bring the ends together and tighten the clamps; verify concentricity before planing.
3. Plane both faces until a continuous chip forms on each side; check that both faces are flat and parallel.
4. Set the heating plate temperature and allow the face to stabilise fully — verify the surface reading, not only the set point.
5. Bring the ends onto the plate at the calculated pressure and hold for the soaking time on the 800mm parameter table.
6. Pivot the plate out, join the ends within the change-over time and apply the fusion pressure.
7. Maintain the fusion pressure for the cooling time on the parameter table; the timer alarms at the end of the phase.
8. Release, open the clamps, lift the fitting out with the crane and inspect the bead all round before it cools completely.

Common Faults & Solutions

FAQ

Q: Can this machine fabricate HDPE elbows?

A: Yes. The machine can be configured for fabrication of HDPE elbows at different angles. Please provide the required pipe diameter, SDR and fitting angle for machine selection.

Q: Can it produce HDPE tees?

A: Yes. With the corresponding clamps, the machine can be used for workshop fabrication of HDPE tees across the 500-800mm range.

Q: Can it make Y fittings?

A: Yes. Both 45° and 60° Y fittings are supported with the corresponding clamping configuration.

Q: What is the maximum pipe size on the 800 model?

A: The welding range of the 800 model is 500-800mm. The maximum size that can actually be fabricated depends on the fitting type — contact us and we will confirm it for your specific fitting type and angle.

Q: What power supply does the 800mm machine need?

A: 380V, 50/60Hz, three-phase, 38kW total: 32kW heating plate, 3kW planing tool and 3kW hydraulic unit. The installation should be designed before delivery.

Q: Why is the heating plate so much larger on this model?

A: Because the joint area at 800mm is large enough that a smaller plate cannot recover face temperature fast enough during soaking. The 32kW plate is what keeps the face inside the ±5°C window.

Q: Does the 800mm machine need a crane?

A: Yes. The machine weighs 5000kg and the fittings at this size are heavy to manoeuvre, so a crane-served bay is part of the installation.

Q: Does it record welding data?

A: Yes. The built-in printer records the welding parameters for each joint and the USB port allows data export for the project file.

Q: What welding temperature is used?

A: The heating plate is adjustable from 0-300°C with ±5°C surface deviation. Heating and cooling times are taken from the welding parameter table supplied with the machine, based on diameter, SDR and wall thickness.

Q: How many operators does it need?

A: Two operators with crane support for loading and removal.

Q: What information is required to select a machine?

A: Pipe material (PE / PP / PVDF), pipe outside diameter, SDR or wall thickness, fitting type, required angle, power supply, and required production capacity.

Q: Can the clamping configuration be customized?

A: Yes. Customized clamping solutions and OEM branding are available for the specific fitting types and angles you produce.