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Drum Blast Machine
Product Description:
A drum blast machine cleans castings and forgings in batches by tumbling them inside a rotating steel drum while a blast wheel throws steel shot at the falling load. The drum turns at 2.5 r/min on the 1,300 mm model and 3 r/min on the 1,000 mm model; the wheel throws 120 to 160 kg of abrasive per minute; the closed drum keeps the shot in and the dust out of the shop.
Kingwo builds four models across two drum sizes. Q3110 carries a φ1,000 mm drum and a 300 kg charge; Q3113 carries a φ1,300 mm drum and 600 kg. Each size comes in a BI and a BII variant, which differ in dust extraction rather than in cleaning capacity.
This is a cleaning machine. It removes moulding sand, oxide scale, rust and burrs. It is not a shot peener, and it is not the right machine for thin-walled, polished or finish-machined parts — the section below says where those belong.
How a Drum Blast Machine Works
Tumbling sets the exposure. The drum turns at 2.5 r/min on the φ1,300 mm machine and 3 r/min on the φ1,000 mm one — slower on the larger drum because the parts have further to fall and need the time to roll over rather than be thrown. At 2.5 r/min a full revolution takes 24 seconds, so the load turns over two and a half times a minute and the wheel never works on a static bed.
Throwing. A cantilever-mounted blast wheel throws 160 kg/min on Q3113 and 120 kg/min on Q3110 through a controlled pattern aimed at the falling curtain of parts. Because the load turns over, there is no fixed shadow line — the geometry that leaves a flat line of uncleaned metal on a fixed table does not exist here.
Circulating. Spent shot, sand and scale drop out of the drum and are lifted by a bucket elevator to the abrasive separator. The separator strips broken shot and sand before returning usable abrasive to the wheel, which is what keeps abrasive consumption from climbing as the shot breaks down. Dust is drawn off at 800 to 2,000 m³/h depending on model, as listed in the specification table.
Q3110 and Q3113: Capacity, Power and Dust Extraction
Model | Drum diameter | Drum capacity | Max. workpiece weight | Throughput | Abrasive flow rate | Total power (excl. dust collector) | Dust extraction air volume | Overall dimensions (L × W × H) |
Q3113BI | φ1,300 mm | 600 kg | 30 kg | 2,500–3,500 kg/h | 160 kg/min | 14.5 kW | 2,000 m³/h | 2,550 × 2,341 × 2,250 mm |
Q3113BII | φ1,300 mm | 600 kg | 30 kg | 2,500–3,500 kg/h | 160 kg/min | 16.3 kW | † | 4,362 × 2,341 × 2,250 mm |
Q3110BI | φ1,000 mm | 300 kg | 15 kg | 600–1,500 kg/h | 120 kg/min | 9.7 kW | 800 m³/h | 2,078 × 2,458 × 1,861 mm |
Q3110BII | φ1,000 mm | 300 kg | 15 kg | 600–1,500 kg/h | 120 kg/min | 11.9 kW | 2,000 m³/h | 3,870 × 2,458 × † mm |
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Product Description
Applications
Foundries — moulding sand and oxide scale off iron castings after shakeout, ahead of fettling and painting.
Forging shops — scale removal from hot-forged parts, including small heat-treatment shops where a 300 kg charge is a day's output.
Auto parts — brackets, housings, levers and fasteners, deburred and uniformed before plating or phosphating.
Hardware and stampings — burrs and flashes off pressed components whose geometry can take part-on-part contact.
Agricultural machinery — mixed batches of small parts that do not justify a dedicated line.
Surface Quality and Acceptance
On steel substrates the reference grade is Sa 2½ (ISO 8501-1). On castings, where the job is removing residual sand and scale rather than preparing steel for coating, acceptance is not a grade on a chart — it is a physical sample. Send three parts and we return them blasted with the parameters used, and that sample becomes the acceptance reference for the order, which removes the argument at goods-in.
Abrasive is specified to SAE J444. S-330 to S-390 steel shot is the usual charge for descaling and deburring; G-12 to G-16 steel grit where a rougher profile is wanted before coating. Roughness follows abrasive size, not machine setting: changing from S-330 to G-12 changes the profile, changing the model does not.
Delivery, Installation and Service
Lead time — 35–60 days after receipt of order for standard configurations. Non-standard dimensions, export crate packing, peak-season capacity and third-party inspection extend it.
Quotation scope — a complete set: blast system (machine, blast wheel, bucket elevator, separator, drive), dust collection (collector and ducting), and the wear parts listed for that model. Freight, insurance, duties, clearance and third-party inspection excluded.
Installation — not included; quoted at USD 135 per man-day, with visa, international air tickets, accommodation and local transport borne by the buyer. Self-installation is supported with remote guidance at no separate charge.
Warranty — 12 months from the final acceptance certificate, normal wear parts excluded. Customers are advised to hold two years of wear parts.
Response — written reply to any quality issue within 24 hours; engineers on site within 7 working days of a written dispatch request.
Payment and terms — 40% deposit with the order, 60% before shipment; EXW or FOB Qingdao as standard.
Kingwo has built surface preparation equipment since 2019, from a 4,800 m² plant with 50-plus staff including an engineering team of over 20, at a capacity of 200 sets a year. The company holds ISO 9001, ISO 14001 and ISO 45001 certification and CE marking on shot blasting machines, sandblasting machines and dust collectors.
Technical Specifications
Q: What is the lead time?
A: 35–60 days after receipt of order for standard configurations. Non-standard dimensions, export crate packing, peak-season capacity saturation and third-party inspection extend the lead time and are scheduled separately.
Q: What does the price include?
A: A complete set: the blast system (machine, blast wheel, bucket elevator, abrasive separator, drive), the dust collection system (collector and ducting), and the wear parts listed for that model. Ocean freight and insurance, import duties and clearance, and third-party inspection are excluded, and installation is quoted as a separate line.
Q: Is installation included?
A: It is not. Installation is charged at USD 135 per man-day, with visa costs, international air tickets, accommodation and local transport borne by the buyer. Self-installation is supported with remote guidance at no separate charge.
Q:What warranty do you give?
A: 12 months from the final acceptance certificate signed at the buyer's site, excluding normal wear parts. Quality issues receive a written reply within 24 hours. We recommend holding two years of wear parts.
Q: Can it be built for our voltage and frequency?
A: Yes — 380 V/50 Hz, 440 V/60 Hz and other destination standards. The exact specification and motor selection are confirmed in writing at order, and power ratings may differ between voltage variants.
Q: Should I take the 300 kg or the 600 kg model — and BI or BII?
A: Decide the drum first by the weight of one charge: Q3110 for 300 kg with a 15 kg per-piece cap, Q3113 for 600 kg with a 30 kg cap. Then decide the extraction. BI and BII of the same size share the drum, the charge, the throughput and the abrasive flow; the difference is 99% against 85% dust collection efficiency for 1.8–2.2 kW more installed power. Take the BII where the collector discharges indoors, shares ducting, or faces an emission figure.
Q: Does it need a pit or a special foundation?
A: No pit. All four models are floor-standing — the drum is carried on the base frame rather than sunk into the ground. The site needs a level concrete floor and power brought to the control panel; we supply the foundation drawings, and the buyer carries out the civil works.
Q: Will the machine fit in a 40HQ container?
A: Not as a complete unit. The 40HQ door opening is 2,340 mm wide by 2,580 mm high; Q3113 measures 2,341 mm across and Q3110 2,458 mm, both above the door width, so both ship knocked down with the frame split into sections and components in separate crates. Freight is quoted against the actual packing list.
Q: Can it clean the inside of cored holes and internal passages?
A: Not reliably. Drum blasting is a line-of-sight process — the shot reaches surfaces that present themselves to the wheel as the load turns, and deep bores, blind holes and internal cavities stay shielded. Those features need a separate internal treatment solution, which is outside this machine's scope.
Q: Can it handle thin-walled or finish-machined parts?
A: It is not the machine for them. Parts tumble against each other and against the drum, so thin sections bend and machined faces pick up impact marks. The per-piece cap is 5% of the charge — 30 kg on 600 kg, 15 kg on 300 kg — and that ratio exists precisely to limit impact energy. Thin-walled and finish-machined work belongs on a rubber belt or a rotary table machine; we build both.
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