ST125A Electric Hydraulic Pipe Cleaning Machine
Advanced Pipeline Cleaning System | Hydraulic Pipe Cleaner
Pipe Cleaning Machine – The ST125A is a revolutionary electric-hydraulic pipe cleaning / unblocking system. Upgraded from the previous pneumatic version, it completely eliminates excessive noise and dust splashing. With hydraulic water-injection assistance and stable propulsion, it is the ideal choice for concrete pipe descaling and clog removal. Whether for construction site pipeline maintenance or prefabricated concrete pipe cleaning, the ST125A delivers efficient, precise, and eco-friendly performance.</p >
🌟 Key Features
Hydraulic drive reduces noise
Water mist, clean operation
Smooth adjustable cleaning speed
Main unit only 7 kg
Cleans 125 mm concrete pipes
160 RPM + 300 L/min water cooling
📊 Technical Specifications
| Parameter | Specification |
|---|---|
| Model | ST125A |
| Cleaning Diameter | 125 mm |
| Concrete Hardness (Protodyakonov f) | 8 – 14 |
| Pipe Length (per segment) | 3 – 4 m |
| Tool Rotation Speed | 160 RPM |
| Water Consumption | 300 L/min |
| Oil Pump Pressure | 0.4 – 0.8 MPa |
| Cleaning Speed (f=8~12) | 100 – 200 mm/min |
| Drill Rod Specification (OD/ID) | 67 mm / 39 mm |
| Main Unit Weight | 7 kg |
| Overall Dimensions (L×H) | 4.3 m × 0.8 m |
| Total Machine Weight | 700 kg |
🔌 Main Motor Specifications
| Parameter | Spec |
|---|---|
| Model | YH2M-4 |
| Power | 7.5 kW |
| Voltage | 380V / 3-phase |
| Spindle Speed | 160 RPM |
🛢️ Hydraulic Pump Station
| Parameter | Spec |
|---|---|
| Motor Power | 1.5 kW |
| Voltage | 380V |
| Solenoid Valve Voltage | 220V AC |
| Adjustable Pressure Range | 0.3 – 0.8 MPa |
⚙️ Structure & Working Principle
The ST125A adopts a modular design with four core systems working in synergy to achieve rotary cutting and hydraulic thrust, easily clearing blocked pipes:</p >
- Base Assembly: Mainframe and fixed pipe bracket connected by 8 high-strength bolts for stability.
- Rotation Mechanism: Motor drives the reducer, torque transmitted through a hollow main shaft to rotate the drill rod and cleaning tool at 160 RPM.
- Propulsion System: Hydraulic cylinders and sliding frames. Hydraulic pressure acts on pistons, pushing sliding plates for automatic advance/retract. Default speed 0.5 m/min.
- Control System: Distribution box with forward/retract commands. Pressure switch set to 3–4 MPa for simple one-person operation.
🔧 Main Reducer Maintenance
To ensure longevity, fill the reducer with #46 or #50 mechanical oil before initial operation. Check oil level monthly, replace lubricant every 500 operating hours. Never run the machine without proper lubrication – failure to lubricate may void the warranty.</p >
🔨 Installation Procedure
- Connect the two frames and level the assembly using a spirit level.
- Secure the motor base to the hydraulic cylinder connection point with provided bolts.
- Connect the two oil pipes between pump station and hydraulic cylinder. Fill hydraulic oil to recommended level; use seal rings for leak-free connection.
- Install main motor, drill rod, and drill bit. Apply mechanical oil at connection points.
- Connect a water pump to the motor’s water inlet (flow: 200–300 L/min, user-provided 220V pump).
- Electrical wiring: L1/L2/L3 (380V phase lines), N (neutral). Main motor to V1/W1/U1; hydraulic pump to V2/W2/U2. Control box COM (red) – common line, Advance (green), Retreat (white).
- Set operating pressure to 3–4 MPa, initial propulsion speed 0.5 m/minute; fine-tune according to pipe hardness.
🔄 Hydraulic Pump Station & Pressure Adjustment
Equipped with an advanced fan-cooled hydraulic pump station. Adjust pressure (0.3–0.8 MPa) via the “P” valve. Recommended working pressure 0.4–0.6 MPa – at f=8~12 concrete hardness, cleaning speed reaches 100–200 mm/min. Oil pipe connections: Point A to cylinder front (below main motor), Point B to cylinder rear (end of bracket). Avoid kinks in hydraulic lines. Use included seal rings to prevent leaks.</p >
🌿 Why Choose ST125A Hydraulic Pipe Cleaner?
Compared to old pneumatic cleaners, the ST125A uses hydraulic drive and water injection to reduce noise by more than 50% while virtually eliminating dust. Ideal for modern construction sites, urban utility tunnels, precast concrete pipe factories, and tunnel drainage systems with strict environmental standards. The hydraulic system applies smooth, adjustable pressure that won’t damage pipe inner walls, extending pipeline service life.</p >
• Daily check hydraulic oil level and water hose connections.
• Clean the oil filter monthly to prevent solenoid valve blockage.
• Replace worn drill rods and cutters promptly (standard rod OD 67mm / ID 39mm).
• For long-term storage, clean the machine, apply anti-rust oil, and keep in a dry environment.
• Never run the machine without water cooling for extended periods – it may damage the spindle seal.
📦 Standard Packing List (Reference)
- ST125A Main unit (with reducer & motor) – 1 set
- Hydraulic power unit (fan-cooled) – 1 set
- High-pressure oil hoses (with seal rings) – 2 pcs
- Drill rod (φ67×39mm, length customizable) – 3 pcs standard
- Alloy drill bit / cleaning tool – 2 sets
- Control cable and operation box – 1 set
- Operation manual & certificate – 1 copy
- Mounting bolts & seal kit – 1 pack
*Note: Water pump and 380V power supply to be provided by user. Recommended pump flow 300 L/min with adequate head.</p >
🏗️ Typical Application Scenarios
Ideal for concrete drainage pipes, precast culverts, tunnel water conduits, municipal sewer lines. Within Protodyakonov hardness f=8–14, the machine maintains high cleaning efficiency. For lighter deposits, reduce pressure to increase speed. With extended drill rod connections, it can clean over 30 meters in a single pass, greatly improving on-site productivity.</p >
ST125A delivers quiet, clean, and efficient pipe unblocking.
Boost job site productivity and reduce maintenance costs – choose the hydraulic pipe cleaning revolution.</p >
📞 Contact us for detailed solutions and technical support.</p >
