PTO‑Dedicated Lobe Blower | Roots Vacuum Pump for Hydro‑Truck, Vac‑Truck & Tank Excavation Truck
Mingtian Machinery Group — ShanGu Brand

ShanGu PTO‑Driven Truck‑Mounted Lobe Blower (Roots Vacuum Pump) is specially engineered for hydro‑truck, vac‑truck, hydrovac excavation truck, tank excavation truck and sewage sludge suction tanker. This positive‑displacement tri‑lobe blower is powered directly by truck PTO (Power Take‑Off) without electric motor. Built for heavy‑duty mobile vacuum excavation, slurry, sewage and waste suction for global truck‑body builders and equipment retrofitters.

Material & Construction Specification

• Housing & End Plates: HT250 high‑strength cast iron, anti‑vibration, anti‑fatigue for bumpy on‑board truck operating conditions
• Tri‑Lobe Rotors: Precision balanced nodular cast iron, optimized for wide‑range variable PTO RPM fluctuation
• Gear Assembly: Hardened alloy steel high‑precision gears, low noise, withstand frequent PTO clutch impact load
• Bearings: Heavy‑duty reinforced rolling bearings for long‑time continuous truck‑mount operation
• Shaft Interface: Standard PTO cardan‑shaft flange; hydraulic motor drive interface optional for chassis layout constraints
• Custom Upgrade: 2205 duplex stainless steel rotors & housing for corrosive waste slurry media

Technical Parameters

Item	Specification
Drive Mode	Truck PTO direct shaft drive / PTO hydraulic motor drive (motor‑free truck chassis version)
Air Flow	800‑6000 CFM (1360‑10200 m³/h), MTR‑Truck dedicated series
Max Vacuum	14‑18 inHg (470‑610 mbar), dry‑running positive displacement
Operational RPM Range	800‑2200 rpm, adapt variable diesel engine PTO output speed
Working Medium	Air, air‑slurry mixed gas, high‑moisture wet gas for hydro‑excavation
Operation Feature	Dry‑running, oil‑free, heavy‑load continuous duty cycle
Mounting	Truck chassis installation, base‑less compact design for truck‑body layout
Custom Options	Flange dimension, shaft size, relief valve, air‑injection valve, port direction for retrofit of existing hydro‑vac truck systems

Core Performance Features

• ✅ Purpose‑built for truck PTO Power Take‑Off application, resist vehicle vibration, shock load and wide variable‑speed working condition; no auxiliary engine required, reduce truck payload burden
• ✅ Large‑CFM high‑volume airflow, handle massive soil‑water mixture, sludge and slurry for hydro‑excavation and tank excavation truck
• ✅ Dry‑run tri‑lobe positive displacement design, avoid oil contamination to suction waste medium
• ✅ Reinforced mechanical structure for harsh municipal site and off‑road bump environment
• ✅ Dual drive solution: direct PTO cardan shaft drive or hydraulic‑motor drive powered by truck PTO hydraulic pump
• ✅ Complete OEM replacement solution for global hydrovac & vac‑truck body builders; dimension customization for old‑unit retrofitting
• ✅ Stable performance under high‑moisture suction, compatible with truck vacuum system inlet filter assembly
• ✅ ShanGu MTR‑Truck special truck model, different from stationary electric‑motor industrial roots blowers

Application Areas

• 🔹 Hydro‑truck / Hydrovac‑truck, non‑destructive hydro‑excavation & potholing underground utility digging
• 🔹 Vac‑truck, vacuum truck, septic & sewage suction tanker
• 🔹 Tank excavation truck, industrial waste & slurry vacuum tanker
• 🔹 Municipal sewer cleaning, mobile solid‑liquid mixture suction service
• 🔹 Truck‑body builder OEM project and existing vacuum truck equipment retrofitting
• 🔹 Mobile industrial waste suction service truck

Contact Mingtian Machinery Group (ShanGu Brand)

Mingtian Machinery Group based in Jinan Shandong China. Manufacturer of ShanGu roots blower, roots vacuum pump, lobe blower, MVR steam compressor, magnetic levitation turbo‑blower. Products exported to Europe, North America, Middle East, Africa, Southeast Asia and Central Asia.