Wire Rod Shot Blasting Machine QJM-1 / QJM-2 | Jinwo, Qingdao, China

Jinwo's Wire Rod Shot Blasting Machine is a continuous through-feed unit that descales, derusts and strengthens the surface of wire and bar. It is used to prepare material before drawing or coating.

It is offered in two forms: a single wire version and a coiled wire rod version, with QJM-1 and QJM-2 sizes in each for different material diameters. Steel shot is thrown at the material from several blast wheels, hitting it from all sides, then a purge system and dust collector clean up the output.

Key Features

• Wire is roughly straightened by a pre-straightener before entering the cleaning chamber, so it passes in a line through the blasting zone
• Blast wheels run at 1,500–3,000 rpm and accelerate the shot to 60–80 m/s, with all-round 360° coverage
• Blast units are arranged in a circular or symmetrical layout so there are no uncovered spots
• High-pressure air purge removes leftover shot and dust from the wire
• Closed-loop abrasive circulation through screw conveyor, bucket elevator, separator and shot storage tank, with abrasion loss of 0.5–1% per hour
• Replaceable guide sleeves suit wire of different diameters (Ø3–25 mm); works on carbon steel, stainless steel and alloy steel
• Two-stage dust removal (cyclone plus bag filter) with dust emission of ≤10 mg/m³

Technical Specifications

• Models: QJM-1, QJM-2
• Wire version QJM-1 material diameter: 6.5–25 mm
• Wire version QJM-2 material diameter: 16–36 mm
• Bar/tube version QJM-1 material diameter: 16–60 mm
• Bar/tube version QJM-2 material diameter: 20–80 mm
• Speed, wire QJM-1: Max 120 m/min
• Speed, wire QJM-2: Max 80 m/min
• Speed, bar/tube QJM-1 and QJM-2: Max 30 m/min
• Power, wire QJM-1: 18.5–22 kW
• Power, wire QJM-2: 18.5–30 kW
• Power, bar/tube QJM-1: 15–18.5 kW
• Power, bar/tube QJM-2: 15–22 kW
• Blast wheels, wire versions: 4
• Blast wheels, bar/tube QJM-1: 3
• Blast wheels, bar/tube QJM-2: 3–4
• Shot diameter: 0.3–0.8 mm
• Impeller speed: 1,500–3,000 rpm
• Shot velocity: 60–80 m/s

Applications

• Descaling and derusting wire before drawing
• Surface preparation of wire and bar before coating
• Surface strengthening of wire and bar
• Cleaning carbon steel, stainless steel and alloy steel wire

Commercial Details

• Brand: Jinwo
• Manufacturer: Qingdao Jinwo Machinery Manufacturing Co., Ltd.
• Place of origin: Qingdao, Shandong, China

Frequently Asked Questions

• What materials can it clean? It handles carbon steel, stainless steel and alloy steel wire and bar, removing scale, rust and oil.
• What is the maximum line speed? The wire version reaches up to 120 m/min on QJM-1 and 80 m/min on QJM-2, while the bar/tube versions run up to 30 m/min.
• Does it include dust collection? Yes, it has a two-stage cyclone and bag filter system with dust emission of ≤10 mg/m³, plus an air purge for the wire surface.
• What should I send for a quotation? Send the material type and form (single wire, coil or bar), diameter range, the surface condition, the line speed you need and whether it must fit an existing drawing or coating line.