Products Description
Rotoblast Shot Blasting Polishing Machine
The shot blasting machine for brake pad steel backing is a specialized shot blasting cleaning equipment designed for the surface treatment needs of brake pad steel backing. Its core function is to remove oxide scale, rust, oil stains and processing burrs from the surface of the steel backing, while enhancing the surface roughness of the steel backing, improving the adhesion strength with subsequent friction materials, and ensuring the assembly quality and braking performance of the brake pads.
Machine Working Process
1.Loading Stage
Brake pad steel backings awaiting treatment are introduced into the blast cleaning chamber either manually or through an automated production line.
2.Blast Cleaning Stage
The blast wheel spins at high velocity, propelling abrasive shot uniformly against the steel backing surface. This impact action eliminates surface contaminants and imparts a textured, rough finish to the substrate.
Shot Separation Stage
Spent shot, particulate dust, and debris are channeled into a separator unit. Eligible shot media is recovered for reuse, whereas impurities are captured and disposed of by the dust collection system.
Unloading Stage
The finished steel backings are transferred out of the chamber via a conveyor mechanism and seamlessly fed into the subsequent adhesive application or bonding process.
machine Application
FAQ
1. What is the core function of this special shot blasting machine for steel backs?
Itsfs surface, andvia. This greatly enhancsCore function: Surface treatment for brake pad steel backs, removing oxide scale, rust, oil stains and burrs, and creating a uniform micro-rough surface to enhance bonding strength with friction materials.
2. Which steel back types are compatible with this machine?
Applicable steel backs: Thin-plate stamped types (e.g., for passenger cars, commercial vehicles). Adjustable to different specs; confirm compatibility with manufacturer for special-shaped/ultra-thin ones in advance.
3. How to choose the appropriate shot material for steel back shot blasting?
Shot selection: Prefer cast steel shots (tough, no excessive scratches) or steel wire cut shots (sharp, removes stubborn impurities). Particle size: 0.3-1.0mm, based on steel back thickness and required Ra value.
4. Will the steel back be deformed during the shot blasting process?
No deformation with proper adjustment. Equipped with flexible conveying/positioning system; shot blasting angle, flow and speed are precisely controllable. Trial run with samples recommended before mass production.
5. What is the required surface cleanliness level after steel back shot blasting?
Required cleanliness: Sa2.5+ (ISO 8501-1), free of visible impurities, with uniform gray metallic luster, ensuring full adhesion and durability.
6. Can this machine be integrated into an automated production line?
Yes. Standard with automatic feeding/conveying/unloading systems, seamlessly integrable with production lines (PLC signal interaction). Custom solutions available for non-standard lines.
7. How to maintain the shot blasting machine daily?
Daily maintenance:
① Check wear of shot blaster impeller, blades and liners;
② Inspect shot quantity and quality, supplement or replace as needed;
③ Clean dust removal system and check airtightness;
④ Verify normal operation of electrical and conveying systems.
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