Sinto, officially Sinto Industrial Co., Ltd. (Japan), with its domestic production base at Qingdao Sinto Machinery, is a globally well-known brand for shot blasting, surface cleaning, and strengthening equipment, focusing on high-stability, low-dust, and automated shot blasting machines.

Working Principle

It relies on the high-speed rotation of the shot blast wheel to generate centrifugal force, propelling steel shots/abrasives onto the surface of the workpiece at high speed. This achieves rust removal, oxide scale removal, sand cleaning, deburring, surface roughness adjustment, and shot peening (enhancing the fatigue strength of workpieces).

Main Machine Types

1. Track Type (QS32 Series, most common in China)

Suitable for small to medium castings, stamped parts, gears, and springs in batch lots; loads once and automatically tumbles for cleaning; small footprint. Example: QS326JS from Qingdao Sinto.

2. Hanging Hook Type (KSB Series)
Works by hanging the parts, suitable for medium to large pieces that are hard to tumble or prone to collisions; single or double hooks, capable of continuous operation.

3. Roll Conveyor Type

For H-beams, steel plates, steel structures, and profile rust removal on assembly lines. Steel passes continuously through the cleaning chamber; mostly used in steel structure factories. Example: KACX-ⅡA H-beam specialized model.

4. Trolley/Turntable Type

For heavy large parts, molds, and large castings. The workpiece stays stationary while the shot blast head projects from multiple angles.

5. Rotary Drum Type (CND Series)

Large batch processing for small parts; drum tumbles the pieces, suitable for deburring and sand cleaning of small items.

Core Features

- Originates from Japan SINTO technology, produced domestically at Qingdao Sinto with complete spare part supply;

- Durable shot heads (wheels) with relatively long life for consumables;

- Equipped with bag/pulse dust collectors, compliant dust emission;

- Optional automatic monitoring and fault alarm systems, supporting automation and unmanned upgrades;

- Models range from small batch single pieces to large production lines.

Typical Industries

Casting, auto parts, steel structures, construction machinery, springs/gears, die-casting, and ship steel plate rust removal.

Consumable Parts

Shot blasting machine consumables: blades, impellers, control cages, protective plates, rubber tracks, hook covers, dust filter bags. Original spare parts are available from Qingdao Sinto and domestic agents.

Comparison with Ordinary Domestic Shot Blasters

Advantages: Good overall stability, uniform cleaning, low noise, excellent dust removal;

Drawbacks: Purchase price is higher than ordinary domestic brands; best suited for factories with high requirements for surface quality and low equipment failure rates.

Sinto Shot Blasting Assembly (Shot Blaster / Blast Wheel) Main Models

The most commonly used Sinto shot blasters in China are the Y series (belt-driven), with other series including X and QBH. The original Japanese factory also has other series. Shot blasting assembly = housing, impeller, blades, control cage, direction sleeve, guard plate, main shaft bearing seat, pulley/motor assembly.

1. Y Series (Belt-Driven, most popular domestically at Qingdao Sinto)

- Y-20: Small shot blaster, small conveyor, small turntable, suitable for small batch and small parts cleaning.

- Y-30 (Y30) : Compatible with QS32 conveyor-type machines and SHB small hook-type machines; Power about 7.5~11 kW, spare parts are the most widely available in the market; SHB-OB standard configuration includes Y30 shot blasting turbines.

- Y-40: Medium to large, large hook-type, roller pass-through, heavy-duty turntable; Power 15~22 kW, large shot blasting capacity.

- Y-50: Heavy-duty large blast wheel, large roller steel plate line, high-tonnage hook machine; 22 kW or above.

2. X Series (Direct-Drive Shot Blaster, motor directly connected to main shaft, no belt)

- X30, X40: Direct-drive structure, compact, easy maintenance, mostly used in new generation QSNB-II conveyor machines and QKSB hook machines; slightly lower noise, reduced belt wear.

3. QBH Series (Large High-Efficiency Overhead Shot Blaster)

- QBH038: High-power, high-efficiency shot blasting assembly, mostly used for steel structure roller pass-through and large casting cleaning lines; often used for H-beams and steel plate pre-treatment lines; large shot blasting capacity, 22 kW level, standard blast wheel for large domestic Sinto lines.

4. Original Japanese SINTO Local Shot Blaster Models

- SNBX, SNTX, CNDX: Compatible with dedicated shot units (original Japanese equipment, relatively few in China, expensive spare parts).

Reference for Model and Shot Blaster Assembly Matching

1. QSNB-II Conveyor Machine: Y30 / X30

2. SHB Small Hook-Type: Y30

3. QKSB Hook Series (10/25/50): Y30/Y40

4. Steel Plate / H-Beam Roller Pass-Through: Y40, Y50, QBH038

Key Points to Distinguish

1. Y = Belt drive; X = Motor direct drive.

2. Same model also has left-hand/right-hand rotation (installation direction, must confirm rotation when buying spare assemblies!).

3. Core spare parts of shot blasting assembly turbines: blades, impellers, control cages, housing guard plate, main shaft bearing assembly.

FAQ：

Q: What is Sinto shot blasting machine used for?

A: Sinto shot blasting machine is mainly used for casting cleaning, forging descaling, rust removal, oxide scale removing and shot peening to improve workpiece fatigue resistance.

Q: Does Sinto produce steel shot and steel grit?

A: Yes. Sinto acquired Winoa, a top global abrasive manufacturer, to supply supporting steel shot, steel grit and cut wire shot for its shot blast machines.

Q: What main types does Sinto shot blast machine have?

A: The main models include SHBX spinner hanger type, CND drum tumble type, SNB rubber belt tumblast and ISPX-S rotary table shot peening machine.

Q: Where is Sinto shot blasting machine assembled in China?

A: Sinto has its production base in Qingdao, offering local assembly, spare parts and technical service.