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spinner hanger blast machine
The hook rotates workpieces evenly inside the chamber. Multi-angle blast wheels ensure thorough
treatment on curved surfaces, inner cavities and weld seams, delivering uniform roughness and
consistent Sa2.5 cleanliness grade.
Suspended loading avoids collision damage
Workpieces hang separately without mutual contact. Ideal for thin plates, precision castings and
easily deformed components, eliminating scratches caused by tumbler machines.
Wide load capacity for heavy & medium-small parts
Multiple load options available for light die castings and heavy construction weldments. Single-hook
or double-hook design; double-hook model enables simultaneous blasting and loading to raise
productivity.
- Product Description
Spinner Hanger Blast Machine | Industrial Rotary‑Hook Shot Blasting System for Heavy‑Duty Surface Treatment
Botou Junda Machinery Co., Ltd. manufactures industrial‑grade spinner hanger blast machine, designed for continuous, automated surface treatment of heavy castings, welded assemblies and precision forgings. Our rotary‑hook shot blasting cleaning systems feature hook load capacities ranging from 250 kg to over 5,000 kg, with each turbine blast wheel power rated from 7.5 kW to 22 kW and a processing throughput of 1‑12 tons per hour. Equipped with manganese steel liners (12‑14% Mn) and PLC‑controlled rotation modules, the machines consistently achieve Sa2.5 or Sa3.0 cleanliness standards. Drawing on 20‑years of foundry machinery expertise and a 3,000‑square‑meter production facility, we deliver custom‑built solutions with around 15‑day lead‑time and respond to technical inquiries within 6‑8 hours.
What Is a spinner hanger blast machine?
A spinner hanger blast machine is a specialized overhead monorail or Y‑track system that suspends workpieces on rotating hooks inside a sealed blast chamber. Unlike tumble‑belt systems, suspended loads eliminate part‑to‑part contact, preventing scratches on thin‑walled aluminum die‑castings, precision forgings and intricate structural components.
High‑speed centrifugal blast wheels project abrasives at multiple angles while hooks rotate at 2‑5 revolutions per minute. This design delivers 360‑degree coverage for complex geometries, removing welding slag, oxide scale and burrs from curved surfaces, inner cavities and weld seams. Automated abrasive recovery including screw conveyor, bucket elevator and air separator recycles intact shot and separates dust debris to cut operating costs.
Main Technical Specifications
| Item | Value |
|---|---|
| Model Series | Spinner Hanger Blast Machine |
| Hook Rotation Speed | 2‑5 rpm |
| Installed Power | 15 kW‑120 kW |
| Processing Capacity | 1‑12 tons/hour |
| Hook Load Capacity | 250 kg‑5,000 kg (single‑hook or double‑hook) |
| Blast Wheel Power | 7.5 kW‑22 kW per turbine |
| Cleanliness Grade | Sa2.5 / Sa3.0 |
| Dust Emission | ≤5 mg/m³ |
| Noise Level | ≤85 dB |
| Structural Design | Overhead suspension, monorail travelling feed, fully‑sealed dust‑proof housing |
Core Advantages of Our spinner hanger blast machine
360° Full‑Coverage Blasting Without Blind Zones
Rotating hooks turn workpieces evenly while multi‑angle blast wheels process all surfaces simultaneously. Uniform roughness is guaranteed for curved profiles, inner cavities and welded joints, meeting stringent Sa2.5 cleanliness requirements for coating adhesion.
Suspended Loading Prevents Collision Damage
Workpieces hang individually without touching one another. This construction protects thin sheets, precision castings and deformation‑prone parts from scratches and dents — a common issue with tumble‑belt shot blasting machines.
Wide Load Capacity for Diverse Industrial Applications
Our systems suit both light‑weight die‑castings and heavy‑duty structural weldments. Single‑hook models are fit for batch processing; double‑hook configuration enables blasting and loading operations at the same time, doubling productivity for multi‑shift production.
Closed‑Loop Abrasive Circulation Reduces Operating Costs
Air separators, bucket elevators and automatic screw conveyors recover intact shot and remove dust. This closed‑loop technology effectively lowers abrasive consumption, extends shot service life and cuts processing cost per workpiece.
Robust Manganese Steel Liners Deliver Outstanding Wear Resistance
Inner chamber walls are lined with 12‑14% manganese steel reaching HRC 60+ hardness. The material withstands continuous abrasive contact in heavy‑duty machine shops and high‑volume automotive foundries, minimizing downtime for liner replacement.
Industrial Applications
Our spinner hanger blast machine addresses critical challenges across three major sectors:
Aluminum Die‑casting: Rapid removal of burrs and oxide layers on thin‑walled automotive housings without deformation. Suspended loading avoids part‑to‑part contact to preserve dimensional tolerances for engine covers, gearboxes and structural joints.
Heavy‑Duty Weldments: Process large steel frames for construction machinery and power‑generation equipment. The system eliminates welding slag, scale and rust to generate high‑anchor profiles (Rz 75‑100 µm) for durable epoxy and polyurethane coatings.
Precision Forgings: Deliver consistent shot peening for aerospace turbine blades, crankshafts and connecting rods. Controlled rotation speed and PLC pre‑set blasting cycles produce uniform compressive‑stress layers, improving fatigue strength by up to 30% for high‑stress components.
Quality Control & Compliance
We follow strict inspection protocols to guarantee long‑term reliability. Dynamic‑balance testing verifies blast‑wheel vibration stays below industry thresholds. Liner thickness and hardness inspections guard against abrasive erosion. Hot‑spot alignment tests ensure blast streams focus on rotating workpieces for uniform coverage.
Our quality management complies with ISO9001, ISO14001 and ISO45001 certifications. Dust collectors keep emissions below 5 mg/m³, satisfying environmental regulations in EU and North America. We provide CE certification assistance, technical documents and test files to facilitate global market access.
Customization & Global Support
Botou Junda offers professional ODM and OEM services tailored to global voltage standards, environmental codes and onsite installation conditions. Custom options include:
- Machine dimensions adapted to existing factory layouts
- Intelligent monitoring software for predictive maintenance
- Multi‑language PLC interfaces and English operation manuals
- Private‑labeling and technical drawing modification
Cooperating with leading logistics providers, we arrange FCL, LCL and over‑size cargo shipments. Our team handles export packaging, fumigation certificates and customs formalities to mitigate shipping risks and guarantee smooth delivery.
Frequently Asked Questions
Q: What is the working principle of the spinner hanger blast machine?
A: Workpieces are hung on hooks and transported into the sealed blast chamber. Hooks drive continuous rotation of workpieces. Multiple blast wheels eject abrasives at high speed to realize 360‑degree all‑round cleaning. Abrasives are automatically recovered, screened and reused. Pulse‑jet dust collectors are equipped for eco‑friendly operation.
Q: What workpieces are suitable for the spinner hanger blast machine?
A: It applies to medium‑heavy castings, welded structural parts, valves, locomotive components, molds and other large‑size workpieces. Especially ideal for thin‑walled and collision‑prone parts, as suspended workpieces avoid mutual impact and surface damage.
Q: What advantages does the spinner hanger blast machine have compared with tumble‑belt shot blasting machines?
A: It supports heavy‑load capacity. Suspended workpieces prevent collision marks. It can handle special‑shaped and large structural components. Single‑hook or double‑hook designs grant flexible loading, suitable for multi‑variety and small‑batch production.
Q: How to determine the correct hook capacity for the spinner hanger blast machine?
A: The capacity shall be calculated based on the maximum weight of the heaviest single workpiece plus fixture weight, with an additional 20% safety margin to ensure safe operation.
Q: How to maintain consistent surface finish quality?
A: Consistency is managed via PLC presets that control blasting cycle time, hook rotation speed and abrasive flow monitored by ammeters on blast‑wheel motors.
Contact Us for Custom Solutions
Ready to improve your surface‑treatment efficiency? Our engineering team will help you select the optimal hook capacity, spinner hanger blast machine configuration and abrasive circulation system for your application. For technical consultation and quotations, please Contact Us via junda001@jundablast.com
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