Home / Airless Shot Blasting Machine / Airless Shot Blasting Machine - Hanger Type Double Door
Double-door hanger-type machine built for faster loading cycles and efficient blasting of heavy components. Uniform finishing, easy access, and reliable throughput improve production performance.
The hanger type double door shot blasting machine cleans, descales, and prepares medium to large fabricated parts that cannot be tumbled. Parts are hung on hooks and blasted by high-speed wheels from several angles, so rust, scale, and sand come off evenly without the parts knocking against each other.
The two-door layout is what defines this build. One hook sits inside the chamber blasting while the other stays outside for loading and unloading, so the next batch is ready as soon as the cycle ends. This makes the double door hanger shot blasting machine a strong fit for irregular, heavy, or delicate jobs that need careful handling.
Available Configurations
Smart Process Overview
Parts are hung on a hook outside the chamber, then brought in through the door for blasting. Inside, the hook rotates the load so every side faces the stream, and several blast wheel units throw steel shot or steel grit onto the parts from set angles.
Because there are two doors and two hooks, one side blasts while the other is loaded or unloaded. This overlap keeps the wheels working with little idle time between batches.
Used abrasive drops to the hopper and passes through the screw conveyor, elevator, and air wash separator for reuse. The dust collector removes dust and fines, and the finished parts leave clean, ready for painting or coating.
Built With Precision Components
Blast Wheel Units
7.5 HP to 30 HP turbines that throw abrasive onto the hanging parts at high speed.
Blasting Chamber
Manganese steel or rubber-lined chamber with replaceable wear plates for a long life.
Dual Door and Hook System
Two doors with a hook each, so one side blasts while the other is loaded or unloaded.
Rotation Mechanism
Turns the hanging load, typically 2 to 6 RPM, for uniform blasting exposure.
Abrasive Circulation System
Screw conveyor, bucket elevator, and air wash separator that recover and reuse abrasive.
Dust Collector
Bag filter or cartridge type with pulse jet cleaning for a clear chamber.
Electrical Control Panel
PLC-based or conventional panel with operational controls and safety interlocks.
Safety System
Door interlocks and emergency stop that keep the wheels off until the door is sealed.
Engineered Output Parameters
| Model | HT-250 | HT-500 |
|---|---|---|
| Hook Capacity | 250 kg | 500 kg |
| Job Size (mm) | 800 × 1200 | 1000 × 1500 |
| Blast Wheels | 2 × 7.5 HP | 2 × 10 HP |
| Total Power | 20 – 25 kW | 30 – 40 kW |
| Production | 5 – 10 jobs/hr | 8 – 15 jobs/hr |
Custom Engineered Mechanism
The batch door type loads parts into the chamber one batch at a time, by hand or semi-automatically. In the double-door version, two hooks work in turn, so loading and blasting overlap and the machine rarely stands idle.
This setup suits low to medium production and is a common choice for jobbing units, fabrication shops, and engineering workshops. Simple operation and easy loading access make it a reliable shot blasting machine for steel fabrication work.
The double-door batch design is the simplest and most affordable way to blast non-tumbling parts, which makes it ideal for shops handling a changing mix of jobs rather than one continuous line. Its two hooks lift output over a single-door machine without the cost of a full conveyor system.
The build is rugged and easy to run, with wear-resistant liners and simple maintenance. That mix of low cost, flexibility, and reliable output is why an airless hanger-type shot blasting machine manufacturer often recommends the double door as the entry point into hanger blasting.
The double door machine suits shops that clean heavy or irregular parts in changing batches rather than a fixed flow. Foundries, fabrication units, heavy engineering shops, and automotive workshops use it to clean castings and welded assemblies while protecting finished faces. The industries below are where a batch hanger machine fits best.
Industrial Solutions
The double door machine suits batch cleaning of medium to large non-tumbling parts.
Cleaning castings and forgings in batches
Descaling welded and fabricated assemblies
Rust removal from heavy engineering parts
Surface prep before painting or galvanizing
Shot peening of stressed components
Finishing of machined or mixed-job batches
Industrial Solutions
The two-door batch design gives smaller and mid-size shops a simple machine.
Advanced Engineering Highlights
Customization options can be provided based on production requirements.
Additional System Enhancements
Automates the batch cycle and monitoring for simpler, repeatable operation.
Sets hook rotation speed to suit the part for even, controlled blasting.
Opens and seals both doors automatically for faster, safer batch changeovers.
Removes contaminants from the media to hold quality and extend abrasive life.
Tracks media quantity so blasting stays steady and uninterrupted.
Lowers operating noise for a safer, more comfortable work area.
Keeps the dust system clean and blocks sparks for safer running.
Clears leftover dust and abrasive from parts after blasting.
Measures load weight for balanced, safe handling of components.
Angles complex parts so the stream reaches recesses and undersides.
It is a batch machine with two doors, each carrying a hook. One hook blasts inside while the other is loaded, so the machine keeps working with little pause between batches.
A single door machine waits while you load and unload. With two doors, loading overlaps with blasting, so idle time drops and output rises without a full conveyor system.
Castings, forgings, welded assemblies, and heavy or irregular fabricated parts that cannot be tumbled and need a damage-free, even finish.
The double door range covers the HT-250 with a 250 kg hook and the HT-500 with a 500 kg hook, sized for medium batch parts. Larger or continuous needs move to the Y-type or closed-loop variants.
Mainly steel shot and steel grit, matched to the part and finish. A high-speed shot blasting turbine throws the media for fast, even cleaning.
Foundries, fabrication shops, heavy engineering, automotive, and general job-work units that clean varied batches of heavy parts.
Yes, it includes a screw conveyor, bucket elevator, and separator for continuous abrasive recovery and reuse.
Yes, options such as pneumatic doors, VFD hook drives, tilting hangers, weighing systems, and soundproofing are available.