You need to paint fresh lines on a road, a parking lot, or an airport apron. The job is too big for rattle cans, but you do not want the hassle of heating thermoplastic. What do you use? A cold spray line marking machine. Unlike thermoplastic machines that need to melt powder at 200°C, this one works with cold liquid paint – just pour it in and spray.
The machine uses a gasoline engine to power a high-pressure pump. The pump pushes paint through a spray gun or two guns at very high pressure (up to 30 MPa). The paint atomizes into a fine fan shape and sticks to the road. Within minutes, it dries, and you have a clean, sharp line.
YG offers several cold paint road marking machines. The CK-13L hydraulic dual‑gun model has a 5.5HP Honda engine and sprays up to 13 liters per minute. The diaphragm pump models (YG-6L single gun, YG-8L double gun) are lighter – 72kg to 128kg – and very portable. The hydraulic plunger pump model is built for heavy‑duty work with high‑viscosity materials.
Three Types Of Cold Spray Line Marking Machines – Specs Side By Side
CK-13L Hydraulic Dual‑Gun Cold Paint Road Marking Equipment
This is the most powerful model. It uses a hydraulic drive system.
| Engine | 5.5 HP Honda gasoline engine |
| Pump type | Plunger pump, automatic reciprocating |
| Drive method | Hydraulic drive |
| Working pressure | 8 – 25 MPa |
| Spray flow rate | 13 L/min |
| Spray width (dual gun) | 100 – 450 mm |
| Spray thickness | 0.2 – 0.4 mm |
| Dimensions | 1600 × 800 × 1200 mm |
| Net weight | 120 kg |
Diaphragm Pump Cold Spray Line Marking Machines (YG-6L & YG-8L)
These are lighter and simpler. Perfect for smaller jobs or one-person crews.
| Engine power | 4.3 HP (Chinese engine, can upgrade to imported) | 7 HP |
| Unloading flow rate | 6 L/min | 8 L/min |
| Max output pressure | 25 MPa | 30 MPa |
| Standard nozzle | 517 (for width under 15cm) | 0.027 |
| Hose pressure rating | 35 MPa | 40 MPa |
| Standard hose length | φ6 × 10 m | φ6 × 2 + φ10 × 10 m |
| Net weight | 72 kg | 128 kg |
| Max spray width | 20 cm | 45 cm |
What does “unloading flow” mean? It is the pump’s output when the gun is open. Higher flow means faster painting.
Hydraulic Plunger Pump Cold Spray Line Marking Machine (Single / Double Gun)
This is a heavy‑duty model designed for thick, high‑viscosity materials like some specialty paints or cold plastics.
| Max output pressure | 350 PSI (about 2.4 MPa – note: this is much lower than the others, likely a different type) |
| High pressure hose rating | 350 PSI |
| Max nozzle size | 0.047 |
| Standard nozzle | 0.027 |
| Net weight | 120 kg |
| Hose length | 30 m |
| Load flow range | 3 – 18 L/min |
| Special features | Built‑in imported hydraulic pump, suspended power connection, separate oil cooling system, imported high‑stroke plunger pump, SKF oil seals (USA), SKF high‑toughness sealing rings – can spray many high‑viscosity materials |
How Does A Cold Spray Line Marking Machine Work?
Step 1 – Set up safety. Place traffic cones and warning signs. Close the lane you are marking. Safety first – always.
Step 2 – Snap a chalk line. Stretch a string line along the road where you want the edge of your line. This is your guide.
Step 3 – Load the paint. Pour cold liquid paint into the machine’s hopper or connect a paint container. Add thinner if needed – the ratio depends on the paint brand.
Step 4 – Spray. Start the gasoline engine. Pull the trigger on the spray gun. The pump pressurizes the paint and pushes it through the nozzle. The nozzle creates a fan‑shaped spray. Walk along the string line, keeping the gun at a consistent height. The paint lands as a clean, straight line, 0.2‑0.4mm thick.
Is A Cold Spray Line Marking Machine Right For You?
If you need to paint lines quickly, without the hassle of heating thermoplastic, a cold-spray line-marking machine is the tool for you. YG offers a range of hand‑push models. The CK-13L hydraulic dual‑gun is the workhorse (13L/min, 450mm width). The YG-6L and YG-8L diaphragm pump machines are lighter and simpler – perfect for parking lots, small roads, and airport aprons. The hydraulic plunger pump model handles extra‑thick materials.
All machines use a gasoline engine to drive a high‑pressure pump. You pour cold paint, pull the trigger, and walk along a string line. One person can paint 500‑2500 square meters per day. Lines dry in minutes. The equipment pays for itself in a few jobs.
YG Machinery also offers thermoplastic line striping machines. Contact YG directly with your daily meterage and typical line width. They will recommend the right cold spray model, provide a quote, and advise on engine upgrades. No pressure – just honest help to get your road marking job done right.
Frequently Asked Questions
Yes. For dashed lines, you simply release the trigger between segments. Some machines have a “skip” timer – check with YG.
Very important. Flush the pump and hoses with thinner or water (depending on paint type). Do not let the paint dry inside. The document does not specify, but most users run clean solvent through the system until it comes out clear.
Depending on temperature and humidity, typically 2‑10 minutes. Cooler or more humid = longer dry time.
Wear gloves, safety glasses, and a respirator if spraying solvent‑based paint in enclosed areas. Always set up traffic cones and warning signs
Some operators use a laser guide or a sight rod attached to the machine. The simplest method is to snap a chalk line first.