This overhead monorail shot blasting machine is a high-efficiency surface treatment system that uses a suspended conveyor system to automatically transport workpieces into the blast chamber for cleaning. The core working principle is that workpieces can move continuously, index step-by-step, or be conveyed by an advanced accumulating push-type monorail system along with the hanging chain, allowing workpieces to stop at loading/unloading stations and in the blasting zone respectively, enabling fixed-point loading/unloading and fixed-point blasting operations. The shot blasting wheel projects high-speed rotating shots by centrifugal force, forming a dense stream of shots that randomly impact the surfaces of workpieces suspended on the monorail. Through the impact and action of the shots, the overhead monorail shot blasting machine effectively removes adhered sand, oxide scale, rust, welding slag, and contaminants from workpiece surfaces.
In terms of manufacturing quality and structural integrity, the blast chamber of this overhead monorail shot blasting machine features a box-type structure welded from structural steel and steel plates, offering high strength without vibration. The hot zone liners in the blast chamber are made of ZGMn13 high-manganese steel, significantly improving wear resistance and impact resistance, with a service life exceeding 17,000 hours. The separator is a full-curtain type, achieving a separation efficiency of 99% for shots, slag, and dust. The dust collection system uses pulse-jet reverse blow filters, fully meeting modern environmental protection requirements and complying with comprehensive air pollutant emission standards. The monorail hook travel slot features a three-stage sealing system with flexible steel-core rubber strips, nylon brushes, and pneumatic covers, ensuring excellent sealing performance. The workpiece carrier uses a gantry structure, ensuring smooth and unobstructed continuous conveying of workpieces suspended on the monorail. The control system is PLC-based with fault detection for shot control gates and shot conveying, enabling fully automatic operation.
The performance advantages and application value of this overhead monorail shot blasting machine are substantial. First, extremely high productivity – the continuous monorail conveying system allows workpieces to be continuously loaded, blasted, and unloaded, with single-hook load capacity ranging from 50 to 2000kg, achieving productivity far exceeding other cleaning methods. Second, high automation – the PLC automatic control system with fault detection enables fully automatic operation with excellent reliability, saving significant labor. Third, superior cleaning quality – workpieces can rotate within the blasting zone, with shots uniformly impacting from multiple angles, leaving a clean, bright metallic surface free of residues, oxide scale, and rust. Fourth, wide application range – suitable for various suspendable workpieces, from small-to-medium castings and forgings to large structural components. Fifth, outstanding economy – features shallow pit requirements and low operating costs, easily integrates with existing production lines, saving substantial manpower and resources. Sixth, excellent environmental sealing – three-stage sealing combined with efficient pulse dust collection ensures effective dust capture, meeting modern environmental requirements.
In terms of application scope, this overhead monorail shot blasting machine is widely used in automotive, tractor, diesel engine, electric motor, valve, metallurgical, petroleum, chemical, and machinery industries. Typical workpieces include engine cylinder blocks and heads, motor housings, gears, motorcycle engine housings, locomotive coupler yoke assemblies, bogie assemblies, hardware tool housings, and water pumps. The equipment is particularly suitable for high-volume all-round shot blasting cleaning and surface strengthening of steel castings, iron castings, forgings, welded parts, and heat-treated components. Through shot blasting cleaning, not only can surface rust and welding slag be removed, but welding stress can also be eliminated, fatigue strength improved, paint film adhesion enhanced, and ultimately the overall surface and internal quality of workpieces elevated.
| 1. Product Series Classification | ||
|---|---|---|
| Series | Conveying Mode | Features |
| HLT38 Series | Continuous Through Type | Workpieces run continuously, suitable for mass continuous production |
| HLT48 Series | Step-by-step Through Type | Workpiece step operation, fixed-point shot blasting cleaning |
| HLT58 Series | Accumulation Chain Type | Advanced accumulation push overhead chain conveyor, flexible & high efficiency |
| 2. Main Technical Parameters | |||
|---|---|---|---|
| Step Overhead Chain Type (HLTBJ Series) | |||
| Model | Single Hook Load(kg) | Max Workpiece Size(mm) | Productivity(hooks/h) |
| HLTBJ20 | 200 | Φ1000×1200 | 15-30 |
| HLTBJ50 | 500 | Φ1200×1600 | 15-30 |
| HLTBJ80 | 800 | Φ1400×1800 | 15-30 |
| HLTBJ100 | 1000 | Φ1500×2000 | 15-30 |
| Continuous Overhead Chain Type (HLTLX Series) | |||
| Model | Single Hook Load(kg) | Max Workpiece Size(mm) | Productivity(hooks/h) |
| HLTLX20 | 200 | Φ1000×1200 | 30-60 |
| HLTLX40 | 400 | Φ1200×1600 | 30-60 |
| HLTLX80 | 800 | Φ1400×1800 | 30-60 |
| HLTLX100 | 1000 | Φ1500×2000 | 30-60 |
| Hook Overhead Chain Type (HLTQ Series) | |||
| Model | Max Workpiece Size(mm) | Shot Blaster Qty(pcs) | Shot Blast Volume(kg/min) |
| HLTQ382H | Φ700×1200 | 4 | 4×250 |
| HLTQ384H | Φ700×1500 | 6 | 4×250 |
| 3. Detailed Parameters of HLTQ38/HLTQ48/HLTQ58 Series | ||||||
|---|---|---|---|---|---|---|
| Model | Hook Speed(m/min) | Single Hook Load(kg) | Shot Blast Volume(kg/min) | Cleaning Chamber Size(mm) | Total Power(kW) | Air Volume(m³/h) |
| HLTQ382C | 0.35-3 | 240 | 4×200 | 5000×1800×3200 | 73.1 | 8000 |
| HLTQ383C | 0.35-3 | 300 | 4×250 | 5000×2200×— | 82.8 | 10480 |
| HLTQ384C | 0.35-3 | 400 | 6×250 | 6000×2600×3000 | 131.7 | 14500 |
| HLTQ483H | 3-8 | 300 | 2×250 | 2900×1800×3200 | 52.8 | 5000 |
| HLTQ485H | 3-8 | 500 | 4×250 | 5000×2600×2900 | 83.15 | 10480 |
| HLTQ4810H | 3-8 | 1000 | 6×250 | 3062×2600×3000 | 114.72 | 14500 |
| HLTQ583H | 0.8-3 | 300 | 4×250 | 3200×2200×2800 | 83.5 | 10480 |
| HLTQ585H | 0.8-3 | 500 | 6×250 | 3200×2400×3000 | 73.15 | 14500 |
| HLTQ5810H | 0.8-3 | 1000 | 6×330 | 3200×2800×3800 | 188 | 18000 |
| 4. Core Component Parameters | |
|---|---|
| Shot Blaster Type | Cantilever Centrifugal Shot Blaster (Model Q034z15) |
| Cleaning Chamber Liner | ZGMn13 High Manganese Steel, Service Life ≥17000 hours |
| Separator Type | Full Curtain Separator, Separation Efficiency ≥99% |
| Dust Removal System | Pulse Back-blow Dust Collector |
| Sealing Structure | 3-stage sealing (flexible steel core rubber plate + nylon brush + pneumatic cover plate) |
| 5. Application Parameters | |
|---|---|
| Applicable Workpieces | Steel castings, iron castings, forgings, weldments, heat-treated parts, stampings |
| Typical Parts | Engine block & cylinder head, motor housing, gears, motorcycle engine housing, train coupler frame, bogie assembly, hardware tool shell, water pump etc. |
| Applicable Industries | Automotive, tractor, diesel engine, motor, valve, metallurgy, petroleum, chemical, machinery manufacturing |
| Single Hook Load Range | 50～2000kg |
| Cleaning Effect | Bright bare metal surface, release welding stress, improve fatigue resistance |
| Customization | Custom design & production according to customer workpiece requirements |
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