Tumble Belt Shot Blasting Machine for Small Castings and Forgings
1. Application
Q32 shot blasting machine is a specially designed machine used in the surface cleaning for various small parts. It can realize the shot blasting automatically.
2 Components and function
Q3210 shot blasting machine consists of blasting system, blasting chamber, abrasive circulation system (separator, bucket elevator, screw conveyor), dust collection system and electric control system. The surface finish level is Sa2.5.
2.1 Shot blasting system
Shot blasting system consists of blasting chamber and shot blasting machine assembly. The abrasive media like the steel shots, grits are applied on the metal surface driven by the centrifugal force from the blades. Workpieces will be de-rusted, cleaned and roughened in blasting system to reach customer's finishing level.
2.2 Blasting chamber
Blasting chamber is welding structure, inside has rubber belt and drive mechanism, at the bottom of the chamber has a screw conveyor, indoor adopts wear-resisting guard protection, blast wheel fixed on the top of the chamber. In the blasting chamber, the end disk is protected by ZGMn13 material, which has high wear resistant performance. Prolong service life, reduce the cost and reduce maintenance frequency.
2.3 Shot blasting machine assembly
This machine has 1 set of high speed & performance blast wheels. One blast wheel has eight blades. It takes 5 to 10 minutes to replace 8 pieces of blades. Material of blades, control cage and distributor is Cr20S high-chromium cast iron (USA: 5115G51150 Model), which has long service life. Generally speaking, lifetime of blade is over 500 hours, and lifetime of impeller and control cage is over 800 hours. All wear parts are the market most universal national standard parts.
2.4 Abrasive circulation system
The system includes following parts: hopper, abrasive flow pipe, abrasive control valves, screw conveyors, bucket elevator, separator.
2.4.1 Screw conveyor
Screw conveyor consists of cycloid needle wheel decelerator, screw axis, conveyor shell, bearing, etc. It is a standard transverse conveying device, an important part of abrasive circulating system. The screwing blade is made of 16Mn.
This unit is responsible for convying the abrasive to the elevator. Screw conveyor located at the bottom of shot blasting chamber, the spiral blade welding in the drive shaft. Conveyor motor drives screw conveyor to send abrasive to discharge outlet, then the mixed abrasive will be conveyed to elevator bottom.
On both ends of the screw conveyor adopt triple seal protection. the abrasive and dust will drop to the clearance between end plate and bearing once leak out, will not enter the bearing. Screw conveyor shaft with sensors detecting unit can detect the working state.
2.4.2 Bucket elevator
Housing of bucket elevator is welded of steel plate.
There is a checking door for maintenance and replacing buckets at the bottom of the housing.
The buckets are screwed to rubber belt which is stretched between two pulleys.
Belt material: Polyester.
Consists of cycloid needle wheel decelerator, upper and bottom barrel, belt, bucket and tensioning device, etc
In operation, the hoppers fixed on the conveyor belt bring the abrasive to the top, then put down the abrasive to separator. Using polyester wire core special belt, with the function of high strength, high tensile properties. Pulley use squirrel cage structure, avoiding scattered abrasive embed to the gap between the pulley and belt, affecting transmission. There is 10% design Margin for elevator capacity. Because the hoist falls abrasive by centrifugal gravity, part of the material will fall back into the hoist every time. Therefore, it is necessary to increase the lifting capacity appropriately.
| 1 |
Max. Single workpiece size (D*H) |
300*600 mm |
| 2 |
Max. Single workpiece weight |
30 kg |
| 3 |
Max. loading weight |
600 kgs |
| 4 |
Finish level |
Sa2-2 .5 (GB8923-88) |
| 5 |
Processing speed |
3-8 min (According different clear requirement to adjust blasting time) |
| 6 |
Surface roughness |
20~75 μ (Depend on abrasive size) |
| 7 |
Suggest abrasive |
Steel cut wire, casting alloy shot: Φ0.3~1.0, abrasive supply valve max. flow: 400 kg/min. Abrasive loss: 0.0075 kg/m2. Customer prepare. |
| 8 |
Electric power supply |
415V, 3P, 50HZ |
| 9 |
Pit requirement |
Waterproof |
| 10 |
Layout (L*W*H) |
4000*2600*4800 mm |
Qingdao Puhua Heavy Industrial Machinery Co., Ltd. was founded in 2007. We focus on designing, researching and developing, manufacturing and selling shot blasting machine, CNC punching machine, sand preparation equipment, moulding core production equipment, and environmentally-friendly dedusting equipment, etc.We have more than 60 self-developed designs and molds for your choice. With our rich experience and considerate services, we have been recognized as a reliable supplier for many international buyers.
1. Installation and commissioning issue:
We will send 1-2 technicians to assist with machine installation and commissioning,
customer pays for their tickets, hotel and diet, etc Customer need arrange
3-4 skilled worker and prepare insallation machinery and tools.
2. Warranty time:
12 months from date of commissioning completion
3. Supply full English documents:
including foundation drawings, manual book, electric wiring diagram, electric manual book and maintenance book,etc.
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