Overview
The SP1200 is a high-efficiency industrial robot dedicated to coating the inner and outer walls of large-diameter pipes. It is engineered for anti-corrosion, thermal-insulation, and functional surface treatment where manual methods fall short - on long runs, inside confined bores, and at heights where worker safety is a concern.
At its core, the machine combines mechanical automation, PLC control, and precise motion management. Instead of relying on a worker to hold a spray gun and walk the pipe, the SP1200 travels under program control, keeping a constant stand-off distance and traverse speed so the film builds evenly from the first metre to the last.
That consistency is what makes it attractive to coating contractors and plant owners: less material waste, fewer rejected sections, and a documented, repeatable process that is far easier to qualify against coating specifications such as ISO 12944 or NACE/AMPP standards.
How the SP1200 Works
Feed & pressurize
Coating material is supplied from a connected pump (hydraulic or pneumatic feeder) and pressurized to atomization pressure.
Airless atomization
A high-pressure airless spray head atomizes the coating into a uniform fan inside or outside the pipe wall.
Programmed travel
A PLC-driven carriage moves along the pipe at a set speed (0.2–5 m/min), holding a fixed spray distance.
Remote lift & control
The body height is adjusted remotely to centre the head for different diameters; the operator monitors from outside.
Key Specs at a Glance
- Pipe ID 1200–5000 mm
- Working length 80 m / 200 m
- Coating thickness 50–1000 μm
- Spray speed 0.2–5 m/min
- Power 220V ±10%, 50Hz
- Air supply 0.3–0.6 MPa
- Weight 105 kg
Key Specs at a Glance
Efficiency & Quality
✓Throughput far above manual spraying
✓Even, repeatable film thickness
✓PLC + precise automated control
✓Less overspray and material waste
Safety & Scope
✓Less worker exposure to fumes & heights
✓Covers ID 1200–5000 mm
✓Internal & external wall coating
✓Up to 200 m continuous length
Coating System & Compatible Materials
The SP1200 works with a broad family of protective and functional coatings. The table below groups the most common materials by purpose:
| Coating type | Typical use |
|---|---|
| Solvent-free epoxy | Internal linings, potable-water & process pipes |
| High-build anticorrosive paint | External steel protection, long-life primers |
| Coal-tar epoxy | Buried & immersed pipeline external coating |
| PU polyurethane | Topcoats, UV- and abrasion-resistant finishes |
| 8710 / phenolic | Food-grade & chemical-resistant linings |
| Vinyl anticorrosive | Quick-build barrier coats in mild environments |
| Quick-dry enamel | Fast-cure touch-up and finishing |
Internal & External Coating in One Platform
Internal wall
Reaches deep inside large bores (up to 200 m per run) for uniform linings without sending workers into the pipe - ideal for water, slurry, and process lines.
External wall
Coats outer surfaces of pipes, tanks, and structural sections with consistent thickness, reducing weather- and corrosion-driven rework.
Technical Specifications
| Parameter | SP1200 |
|---|---|
| Model | SP1200 |
| Pipe ID range | 1200–5000 mm |
| Max. working length | 80 m (extendable to 200 m) |
| Coating thickness | 50–1000 μm |
| Spray speed | 0.2–5 m/min |
| Power supply | 220V ±10%, 50Hz |
| Air supply | 0.3–0.6 MPa |
| Machine weight | 105 kg (with accessories) |
| Coatable materials | Solvent-free epoxy, high-build anticorrosive paint, coal-tar epoxy, PU polyurethane, 8710, phenolic anticorrosive, vinyl anticorrosive, quick-dry enamel, etc. |
Application Scenarios
Large-diameter pipelines
Cross-country and plant piping where long, uniform internal linings are required.
Municipal & water lines
Potable-water and sewage pipes needing certified internal linings.
Storage tanks & vessels
Shell and roof coating with controlled film build and less downtime.
Marine & offshore
Salt-spray-exposed structures needing durable external protection.
Wind-tower sections
Tubular tower segments coated before or after assembly.
Industrial structures
Functional and insulation coatings on fabricated steel.
Is the SP1200 Right for Your Job?
Choose the SP1200 when your pipes fall in the 1200–5000 mm inner-diameter range and you need both internal and external coating with a controlled, documented process. If your bore is smaller (down to 300–1000 mm), the SP300/SP400 series may fit better; if you need the very largest diameters up to 6000 mm or faster 45 m/min coverage, the SP1200Ultra is the larger sibling.
For weld-joint (field-joint) work after laying pipe, the SP400Ultra with its in-pipe camera is the dedicated option.
Questions Buyers Ask
Q:1.What diameter pipes can the SP1200 coat?
A:Inner diameters from 1200 mm to 5000 mm, for both internal and external walls.
Q:2.Which coatings are supported?
A:Solvent-free epoxy, high-build, coal-tar epoxy, PU, 8710, phenolic, vinyl, quick-dry enamel and similar, 50–1000 μm.
Q:3.How long a pipe can it handle per run?
A:Standard working length is 80 m, extendable to 200 m for longer continuous passes.
Q:4.Does it need a separate pump?
A:Yes - it is paired with a hydraulic or pneumatic feed pump that supplies and pressurizes the coating material.
Q:5.What is the coating speed?
A:Spray speed is 0.2–5 m/min, suited to controlled, high-quality passes.
Q:6.How is it controlled?
A:By PLC with remote operation; body height is adjusted remotely to suit different pipe diameters.
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