Advantages of the Swing Bed Shot Peening Machine
The intermittent swing bed belongs to batch-type automated shot peening equipment, mainly competing with the track-type shot peening machine. It is mostly used for batch cleaning of sand, core removal, and oxide removal from small and medium-sized castings, and is often combined with a separator to form a complete shot material purification system.
1. Process Advantages of the Swing Bed Shot Peening Machine
The workpiece is rolled gently, reducing磕碰 damage significantly.
The multi-angle trough body swings left and right (with a swing amplitude of approximately 120°), and the workpiece rotates slowly and orderly. Unlike the track-type, it does not undergo intense rolling; it is suitable for thin-walled parts, shell-type castings, reducing edge and corner chipping and workpiece impact deformation.
It can clean multiple types of castings in the same batch, without strict specification loading, and has strong flexibility in production.
The shot peening coverage is high, and the internal cavity and sand residue cleaning effect is good.
The shot peening equipment is arranged above the swing bed, and the shot material covers the workpiece from top to bottom; during the swing process, the workpiece continuously flips over, fully exposing the concave and convex cavities and sand core residual positions.
The bottom plate of the swing bed has a shot leakage hole, and the steel balls trapped in the workpiece cavity can automatically leak out, reducing the chance of the shot material being trapped in the workpiece cavity and carried out of the equipment.
The cleaning cycle is stable, and the process is highly controllable.
Intermittent batch mode, PLC sets the duration and swing frequency of each batch shot peening; the surface quality of the same batch of workpieces is highly consistent, suitable for stable production of batch castings.
2. Structural and Maintenance Advantages of the Swing Bed Shot Peening Machine (compared to the Track Shot Peening Machine)
There are no moving transmission components in the shot peening room, resulting in significantly lower failure rate.
The track-type room has tracks and drive chains, prone to sand clogging, workpiece clogging, and chain breakage.
The swing bed only has an external swing mechanism, and there are no chains or rollers in the internal cleaning chamber, eliminating clogging and entanglement faults, and significantly reducing maintenance workload.
The wear-resistant parts have a longer lifespan, and the long-term operating cost is lower.
The swing bed inner lining uses high-manganese wear-resistant steel plate, which wears evenly; there is no problem of frequent replacement of rubber / metal tracks for the track-type.
When combined with a magnetic separation separator, the circulating shot material impurities are continuously purified, further reducing the wear of the shot peening equipment and guard plates.
It can be arranged without a pit, with less civil engineering investment.
It can be installed on flat ground without digging a foundation pit; it is more flexible for renovation of old workshops or layout of new factories, shortening the construction period and saving civil engineering costs.
The automatic loading and unloading have easy integration, and is compatible with assembly lines.
It can be equipped with vibration conveying, automatic loading of bins, and automatic unloading to achieve batch automatic circulation; the intermittent batch mode can easily connect with the post-casting cleaning assembly line, replacing manual loading and unloading.
The loading and unloading drop difference is small, and the workpiece falls with a gentle impact, reducing secondary磕碰.
3. Production and Energy Consumption Advantages of the Swing Bed Shot Peening Machine
The shot material utilization efficiency is high, and the consumption of steel balls is lower.
The top-mounted shot peening equipment has high energy utilization efficiency; when combined with a magnetic separation separator, fine qualified steel balls will not be lost along with the waste material, and the wear of the shot peening equipment and guard plates is better than the ordinary air selection + track scheme.
The sealing performance is good, and it is easier to control dust.
The overall sealed slot body swings, with fewer dust escape points; combined with pulse dust removal + magnetic separation, it is suitable for castings with high sand content, and the pressure for environmental protection compliance is lower.
Flexible production, switching varieties is convenient.
Batch production mode, changing casting specifications only requires adjusting the shot peening time and swing frequency, without replacing tooling; suitable for multi-variety, small-batch casting workshops.
4. Main Application Scenarios (Best Working Condition Combined with Magnetic Separation Separator)
Casting industry： ball iron, gray iron, small and medium-sized castings for sand cleaning, core removal, and surface oxide removal (disappearance mold, resin sand, sodium silicate sand castings);
Automotive parts： shell, cylinder head, bracket, small chassis castings after heat treatment for oxide removal;
Small-batch castings in construction machinery, valve bodies, pump bodies for batch cleaning;
Forgings, stamping parts for rust removal and surface strengthening treatment.
Optimal combination scheme： intermittent swing bed shot peening machine + double-stage magnetic separation separator
The castings contain a large amount of sand in the shot material, and the magnetic separation efficiently separates the steel balls from the sand residue, fully exerting the continuous and stable cleaning advantages of the swing bed.
5. Brief Limitations
Not suitable for ultra-long and ultra-large single-piece workpieces;
Not suitable for workpieces that are difficult to roll.
The initial purchase price of this equipment is higher than that of ordinary crawler-type shot blasting machines;
Very small and thin sheet-like workpieces are prone to getting stuck in the gaps of the swinging bed, so the structure of the workpieces needs to be evaluated in advance.