Overview
Developed by Suqian Spray Intelligent Equipment Technology Co., Ltd., the SP400 combines a compact, remote-lift chassis with precise digital control. Instead of scaffolding, manual guns, and confined-space entry, a single operator sets the parameters and lets the robot deliver a uniform, measurable coating - turn after turn, pipe after pipe.
Six Core Advantages
Built-in touchscreen with 12 memory presets
The onboard HMI stores 12 parameter sets. Switch between pipe diameters with one tap - the machine loads the correct baseline settings instead of re-entering them by hand.
Dual control: remote + touchscreen
Operate the robot either from the handheld remote or the body touchscreen. Dual-channel control gives crews flexibility on site and keeps the operator clear of the spray zone.
Remotely adjustable body height
The chassis height is raised and lowered by remote control to match different pipe diameters, so one unit covers a wide bore range without mechanical reconfiguration.
Remote fine-tuning with auto-logging
Working parameters can be fine-tuned from the remote and are written back to the controller automatically - no manual note-taking, no lost settings between shifts.
Automatic run-time tracking
The onboard computer logs operating hours from power-on, turning maintenance scheduling into a data-driven task rather than a guess.
Servo motor + servo drive, the "three highs"
A servo motor paired with a servo drive delivers the high precision, high performance, and high response needed for uniform, repeatable coating.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SP400 |
| Adaptable Pipe Diameter (Inner) | 400–1300 mm |
| Max. Working Length | 80 m (extendable to 200 m) |
| Spray Thickness Range | 50–1000 μm |
| Spray Speed | 0.2–5 m/min |
| Power Supply | 220V ±10%, 50Hz |
| Air Supply Requirement | 0.3–0.6 MPa |
| Total Weight (with accessories) | 90 kg |
| Sprayable Materials | Solvent-free epoxy, high-build anti-corrosion paint, coal tar epoxy, PU polyurethane, 8710, phenolic anti-corrosion paint, vinyl anti-corrosion paint, quick-dry enamel, etc. |
Where the SP400 Works
- Petrochemical plants and refineries
- Urban pipeline networks (water, gas, district heating)
- Municipal and public-works engineering
- Any project requiring internal and external anti-corrosion or functional linings
Control & Coating System
Driven by a servo motor and servo drive for the "three highs" - high precision, high performance, and high response - the SP400 runs on PLC control with an onboard touchscreen and a handheld remote. Operators fine-tune working parameters from the remote; the controller logs them automatically and tracks run-time from power-on, making maintenance predictable.
Frequently Asked Questions
Q: Can the SP400 coat both the inside and outside of a pipe?
A: Yes. The SP400 is built for anti-corrosion and functional coating on both the inner and outer walls of pipes, across a range of substrate materials.
Q: What pipe diameters does it handle?
A: It adapts to inner diameters from 400 mm to 1300 mm, with body height adjusted remotely to suit each bore.
Q: How long a pipe can it coat in one run?
A: Standard working length is 80 m per run, extendable to 200 m for longer spools or field joints.
Q: What coatings can it apply?
A: Solvent-free epoxy, high-build anti-corrosion paint, coal-tar epoxy, PU polyurethane, 8710, phenolic, vinyl, and quick-dry enamel systems, among others.
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