Spray Guns
Air-purge and mechanical-purge spray guns for PU foam and polyurea applications. Compatible with all JYYJ pneumatic and hydraulic models.
Overview
The spray gun is the contact point between operator and material, and it is where two-component PU foam and polyurea are actually mixed. Pioneer guns are impingement-mixing, two-component (A/B) spray and casting guns: the heated A and B streams collide and mix inside the gun at high pressure, with no static mixer to clean. Gun choice sets the spray pattern, atomisation quality, clogging behaviour, and operator fatigue, so it is worth matching the gun to the work.
Air-Purge Spray Gun
Lightweight CNC-machined alloy body with air-purge cleaning — a burst of air clears the mixing chamber after every pull, so the gun stays low-maintenance through shift-based spraying.
Balanced Twin-Valve Feed
Independent A and B control valves with one-way check valves keep the mix on-ratio and stop material backflow when side pressures drift out of balance — the main cause of hardened-material clogs.
Mechanical-Purge Body
Rod-purge design pushes material out mechanically for continuous, high-volume production on industrial and OEM lines, where the gun runs for long unbroken passes.
Modular Chambers & Nozzles
Quick-change mixing chambers and round, fan, and casting nozzles let you match throughput and spray pattern to the job — and pull the parts to clean in seconds with dual-side filter screens upstream.
Engineering that prevents clogging and downtime
- Precision CNC-machined alloy body — all parts are precision-engraved and turned, not cast, eliminating the porosity defects of cast gun bodies; lightweight and durable.
- Special anti-corrosion surface treatment — the body surface resists strong acid, strong alkali, and gun-wash solvent without corroding.
- Air-material split design — air and chemical paths are separated, minimising the gun-body clogging that plagues simpler designs.
- One-way (check) valve design — prevents A/B backflow and cross-contamination when side pressures drift out of balance, a common cause of hardened-material clogs.
- Imported-alloy mixing chamber and friction pair — specially treated for abrasion and long service life under fast-set polyurea.
- Dual-side filter screens — catch contaminants on both A and B before they reach the mixing chamber.
- Modular mixing chamber and nozzle — separate, quick-change parts make cleaning, maintenance, and spray-pattern changes fast.
Air-purge vs mechanical-purge
Pioneer supplies two purge families. Air-purge guns clear the mixing chamber with a burst of air after each trigger pull — lower maintenance and ideal for shift-based contracting where the gun is triggered on and off. Mechanical-purge guns use a moving rod to push material out for continuous, high-volume production and industrial / OEM lines.
One gun for spraying and casting
The same gun handles PU spray foam, PU casting (pour) foam, and polyurea spraying. Nozzles swap quickly between round spray, fan spray, and casting patterns, so one rig covers wall and roof spraying, cavity pour-fill, and polyurea coating without changing guns. Mixing chambers are selected by output (smaller chamber for fine control, larger for maximum throughput).
Specifications
- Max working pressure: up to 36 MPa (gun rated to match the machine)
- Output range: 1–12 kg/min
- Working air pressure: 0.2–1.2 MPa
- Cleaning: air purge (mechanical-purge option for continuous work)
- Nozzle types: round, fan, and casting
- Compatible: all JYYJ pneumatic and hydraulic machines
Frequently asked questions
Can one gun spray both polyurethane foam and polyurea?
Yes. These are two-component impingement guns rated for both PU foam and fast-set polyurea; you match the mixing chamber and nozzle to the output and pattern you need. The same gun also does casting (pour) foam by switching to a casting nozzle.
How do I choose the mixing chamber size?
Mixing chambers are sized by output: a smaller chamber (e.g. 50) gives finer control at lower flow, a larger chamber (100–120) supports maximum throughput on big spray jobs. We match the chamber set to your machine output and application.
What stops the gun from clogging?
Several features work together: air-material split paths, one-way check valves that stop A/B backflow, dual-side filter screens, and a modular mixing chamber you can pull and clean in seconds. Air-purge clears the chamber after every pull.
Available Models
| Model | Specification | Compatible JYYJ |
|---|---|---|
| PSG-AP25 | Air-purge · up to 25 MPa · 1-8 kg/min · round + fan nozzles · 50/80/100 mixing chambers | 3h q300 h-v6t |
| PSG-AP36 | Air-purge · up to 36 MPa · 1-12 kg/min · round/fan/casting nozzles · 50/80/100/120 chambers | h600 h600pk h-v8t |
| PSG-MP36 | Mechanical-purge · up to 36 MPa · 1-12 kg/min · high-volume continuous production | h600pk h-v8t |
Why Pioneer Accessories
Precision CNC-machined alloy body — lightweight, no casting porosity, durable
Anti-corrosion surface — resists strong acid, alkali, and gun-wash solvent
Air-material split design + one-way check valves — prevent backflow and clogging
Imported-alloy mixing chamber & friction pair — special-treated for long life
Dual-side A/B filter screens — catch contaminants before the mixing chamber
Modular mixing chamber + nozzle — quick swap for cleaning and spray-pattern change
Fits These JYYJ Machines
JYYJ-3H
Entry-level pneumatic spray machine delivering stable 2-10 kg/min output at 25 MPa. Ideal for small to medium insulation, roofing, and residential projects. Single-phase 380V power, 9.5 kW heating, and self-cleaning spray gun included. The most affordable starter unit in the JYYJ pneumatic line.
JYYJ-Q300
Mid-range pneumatic spray machine delivering 2-10 kg/min at 30 MPa — the highest pressure available in the JYYJ pneumatic line. 15 kW heating power and quadruple raw-material filtering provide stability for sustained commercial work. The professional pneumatic step up from entry-level units.
JYYJ-H-V6T
Hydraulic workhorse with 7-inch PLC touchscreen control. 2-10 kg/min at 36 MPa, 105 m insulated pipe support, and intelligent automation. Ideal for contractors who need precision control without flagship pricing — the sweet spot between H600 entry and H600PK flagship.
JYYJ-H600
Entry-level hydraulic spray machine — the gateway to professional-grade pressure. 2-12 kg/min at 36 MPa with 6-18 MPa hydraulic system pressure. Compatible with both polyurethane foam and polyurea coatings. Air-cooling system protects motor and pump for sustained heavy-duty operation.
JYYJ-H600PK
Flagship hydraulic spray machine with 10-inch PLC touchscreen and adjustable mixing ratio (1:1~1:2). 2-10 kg/min at 36 MPa for polyurea, high-density foam, and precision-critical applications. Recipe memory and data logging for project documentation. Adjustable ratio handles temperature-driven viscosity shifts and custom material formulations — unique in the JYYJ line.
JYYJ-H-V8T
Pioneer's top-tier flagship — the highest-output PLC-controlled spray machine in the JYYJ line. 2-15 kg/min at 36 MPa with 10-inch PLC touchscreen, one-click start/stop operation, and low-temperature protection that prevents incomplete mixing in cold conditions. Flat-mounted booster pump design reduces footprint while maintaining the highest output. Ideal for the most demanding industrial polyurea and polyurethane projects.
Need Spray Guns?
Tell us your JYYJ machine model + quantity. We ship genuine factory-direct accessories worldwide within standard lead time.