Pass Through Type Sand Blasting Machine: Automated Surface Treatment Equipment for Mass Production

Pass through type sand blasting machine, also known as conveyor automatic sand blaster, is a continuous surface treatment equipment designed for mass production workpieces. Different from cabinet-type sand blasting machines, it adopts a horizontal through-structure, with a roller conveyor or mesh belt conveyor running through the whole blasting chamber. Workpieces are fed from one end and discharged automatically from the other end after uniform blasting, realizing fully automated uninterrupted production.

This equipment is widely used for descaling, rust removal, oxide layer cleaning, surface matte finishing, stress relief and paint stripping of metal parts. Common applicable workpieces include aluminum profiles, steel plates, metal pipes, hardware accessories, auto parts, cabinet shells and architectural hardware.

1. Product Overview

Pass through sand blasting machine features an open-through layout equipped with continuous conveying system, which eliminates the manual loading and unloading limitation of single-chamber blasting machines. The whole production line runs stably without shutdown interval, greatly improving processing efficiency for large-batch manufacturing.

The blasting cabinet is sealed with thick wear-resistant rubber to prevent sand leakage and dust overflow. High-pressure blast guns are installed on the upper, lower and side sides of the chamber, adjustable in angle and flow to ensure all surfaces of irregular workpieces obtain consistent blasting effect. A complete dust recycling and sand separation system is matched to recycle abrasive media automatically, reducing material waste and workshop dust pollution.

2. Core Advantages

• Fully automatic continuous operation, saving labor cost and boosting production capacity greatly;

• Omni-directional adjustable blasting guns, uniform surface treatment without dead angle;

• Closed circulation abrasive recovery system, low consumption of blasting media;

• Independent dust removal unit, reaching industrial environmental protection emission standard;

• Customizable conveyor structure: roller conveyor for rigid long parts, mesh belt conveyor for thin, fragile small workpieces;

• Integral thick steel plate frame, wear-resistant lining inside, long service life and low maintenance frequency.
    
3. Main Application Industries

• Hardware manufacturing: stamping parts, casting parts, forgings, fasteners

• Automotive industry: chassis parts, wheel hubs, auto structural components

• Aluminum & metal profile processing: aluminum extrusion profiles, stainless steel tubes, steel sheets

• Furniture & architectural metal: metal door frames, decorative metal parts, stainless steel fittings

• Machinery equipment: mechanical shells, gear parts, mold surface finishing
    
4. Technical Configuration Options

• Conveying system: roller conveyor / wire mesh belt conveyor

• Number of blast guns: 4/6/8/12 guns customized based on workpiece size

• Dust collector: pulse bag dust remover / cartridge dust filter

• Abrasive separation: cyclone separator + vibrating screen

• Electrical control: PLC automatic control, touch screen operation, adjustable conveying speed

• Pressure mode: pressure type sand blasting / suction type sand blasting
    
5. FAQ 

Q1: What is pass through type sand blasting machine used for?

A: It is applied to continuous blasting of batch metal workpieces, mainly for stone surface roughing, rust removal, oxide skin cleaning, surface matting, stress elimination and pretreatment before painting/plating.

Q2: Can I customize the machine size and conveyor type?

A: Yes. We support full customization, including machine length, conveyor width, roller/mesh belt conveying, blast gun quantity and blasting pressure according to your workpiece dimensions and output requirements.

Q3: Is the dust treatment system compliant with environmental standards?

A: Equipped with independent pulse dust collector, which can filter fine dust efficiently and meet national industrial environmental protection emission requirements.

Q4: What abrasives can this machine use?

A: It supports glass bead, white corundum, brown corundum, steel grit, aluminum oxide and other common blasting media.