A roller conveyor shot blasting machine is a production line whose output is limited by the slowest stage. Plate loading, chamber exposure, blow-off, abrasive recovery, dust filtration, unloading and inspection must all support the required takt time. A wide opening alone does not prove capacity. The buyer needs a workpiece envelope, surface standard and daily production mix before wheel quantity or conveyor speed can be judged.
The line is most suitable for plates, beams and fabricated sections that can remain stable on powered rollers. Distorted, very short or complex parts may bridge, rotate or retain abrasive. These exceptions should be identified early because fixtures, cross-transfer tables or another machine type can change the scope more than a small increase in chamber width.
For the wider process family, review YG industrial shot blasting equipment; components that cannot travel stably on rollers may require the different suspension method of a hanger type shot blasting machine.
What Workpiece Envelope Must Pass Through The Line?
List minimum and maximum length, width, height, thickness and mass for each product family. Show flanges, stiffeners, welded brackets and open cavities that can trap shot.
Group the workpiece matrix by plate, beam and fabricated section rather than using one maximum opening. Include minimum length, point load and features that trap shot. This exposes products that cannot remain stable on the rollers or that require turning and special blow-off.
Confirm roller pitch and allowable point load for the shortest and heaviest pieces. The chamber opening must include realistic clearance, but excessive opening increases sealing and ventilation demand. A layout should also show crane or forklift access, accumulation zones and the direction in which mixed products enter.
Send the maximum workpiece width, height, length and weight so the conveyor opening and handling limits can be checked.
Which Verified YG Models Fit The Mechanical Envelope?
YG conveyor models cover cleaning widths from 800 to 4000 mm. Feed openings range from 1000×400 to 4200×400 mm, with YG-6930 providing an 800 mm opening height.
Published plate-thickness limits and section envelopes differ by model. Use the table to shortlist a line, then verify the exact workpiece drawing, mass distribution and required surface result. Shot flow rises with the number and output of blast wheels and affects recovery and dust sizing.
| Model | Cleaning width | Feed opening | Conveyor speed | Shot flow |
| YG-698 | 800 mm | 1000×400 mm | 0.5–4 m/min | 4×180 kg/min |
| YG-6912 | 1200 mm | 1400×400 mm | 0.5–4 m/min | 4×250 kg/min |
| YG-6915 | 1500 mm | 1700×400 mm | 0.5–4 m/min | 4×250 kg/min |
| YG-6920 | 2000 mm | 2200×400 mm | 0.5–4 m/min | 6×250 kg/min |
| YG-6925 | 2500 mm | 2700×800 mm | 0.5–4 m/min | 6×250 kg/min |
| YG-6930 | 3000 mm | 3200×800 mm | 0.5–4 m/min | 6×360 kg/min |
| YG-6940 | 4000 mm | 4200×400 mm | 0.5–4 m/min | 8×360 kg/min |
Share minimum and maximum part dimensions, mass and support points so the conveyor envelope can be reviewed before a model is shortlisted.
How Is Conveyor Speed Converted Into Daily Throughput?
Begin with the required cleanliness and the slowest normal product. Run a representative trial at controlled wheel flow, wheel speed and conveyor speed.
Add loading gaps, changeovers, inspection, maintenance and shift availability to the calculation. The published 0.5–4 m/min range is a mechanical operating window, not a guarantee that heavy scale will be removed at 4 m/min. Daily throughput should be calculated from the accepted recipe and realistic line utilization.
Calculate output from the accepted conveyor recipe plus loading gaps, handling, inspection and availability. A mechanical speed range does not state the speed that achieves the required cleanliness on heavy scale. Use the slowest normal product as the capacity reference.
For planning, separate movement time from available production time. The accepted conveyor speed applies while a product is in the treatment route; loading gaps, mixed recipes and stoppages reduce the portion of a shift spent at that rate. Record the assumptions by product family so a change in the mix leads to a revised estimate rather than an unexplained missed target.
Send the workpiece mix, required cleanliness and available shift time. YG can convert the slowest accepted recipe into a more realistic line-capacity check.
Provide the product mix, shift hours and required daily output to review conveyor speed and line capacity.
Where Should Blast Wheels And Abrasive Recovery Be Checked?
Wheel position must cover top, sides and shadowed areas without forcing one surface to receive damaging overexposure. Review wheel access, blade replacement clearance and wear liners.
Review wheel aim against top faces, sides, flanges and shadow zones. Excess exposure on one face cannot compensate for an untreated recess. The trial should identify whether wheel arrangement, part orientation or a second pass is needed.
The elevator, separator, storage hopper and metering valves must continuously return clean abrasive at the required combined flow. Ask how fines, oversize debris and usable shot are divided. Recovery bottlenecks cause unstable wheel flow even when motor power appears sufficient.
Balance combined shot flow with elevator, separator, hopper and dust capacity. Record pressure and abrasive condition during the acceptance run. The line should demonstrate stable recovery, containment and residual-shot removal over repeated workpieces, not only one clean plate.
How Should Dust And Residual Shot Be Managed?
Chamber seals and negative pressure keep abrasive and dust inside while allowing workpieces to pass. Size extraction from actual opening, wheel flow and contaminant load.
Downstream brush and blow-off systems should remove residual shot from flat surfaces and accessible cavities. Parts with cups or deep channels may still need turning or manual cleaning. Define acceptable carryout and provide safe collection points instead of allowing shot to reach aisles and downstream coating equipment.
Share the existing plant layout and environmental requirements so abrasive recovery and dust-control scope can be confirmed.
CONFIRM RECOVERY AND DUST SCOPE
How Will The Blasting Line Connect To Handling And Coating?
Before releasing the order, place the machine into the whole factory route. Confirm incoming storage, lifting, line elevation, foundations, pits, dust-duct route, electrical access, outgoing buffer and coating handoff. Mark maintenance withdrawal space as well as the operating footprint. A line that meets blast capacity but blocks handling will not meet daily output. The final layout, utility list, workpiece matrix and accepted test recipe should carry the same revision so civil work, manufacturing and production planning use one scope. Include foundation loads, installation tolerances and responsibility for every connection point.
Include noise, access platforms, liner replacement, wheel withdrawal and safe isolation in the layout review. Maintenance that cannot be performed safely will reduce real availability.
Confirm downstream coating timing after blasting. Clean steel can deteriorate before coating when humidity, contamination or handling is uncontrolled. The line plan should connect surface preparation output with inspection, buffer capacity and the coating window. Include rejected pieces and rework in the capacity review.
Record the permitted holding time and the action required when prepared steel exceeds it, so nominal blasting output does not hide coating delays or repeated surface preparation.
What Must The Factory Acceptance Test Prove?
Use normal workpieces representing the largest envelope, worst scale and difficult geometry. Record initial condition, conveyor speed, wheel settings, abrasive grade, consumption, dust pressure and final cleanliness/profile.
Time loading through unloading and inspect shadow areas and retained shot. The test should also demonstrate emergency stops, guarding, interlocks, noise controls and maintenance access. Acceptance is based on a repeatable production result, not an unloaded demonstration of the conveyor.
The proposal should define conveyors, chamber, wheels, recovery, separator, blow-off, dust collector, controls, foundations, utilities, spares and the workpieces used for acceptance.
Submit the accepted trial conditions, layout constraints and downstream coating window to receive a complete line proposal and acceptance scope.
Submit drawings, surface standard and upstream or downstream process details for a complete line proposal.
Roller Conveyor Shot Blasting Machine Buyer Questions
Yes when the section fits, remains stable and wheel placement reaches the required faces.
Not necessarily; the accepted surface result determines the usable recipe.
Trapping geometry, worn seals or inadequate blow-off can increase carryout.
Use the worst normal scale and the geometry most likely to create shadowing or retain shot.
A useful conveyor-line proposal ties the workpiece matrix to the accepted surface recipe and the factory layout. Submit those three records together with the intended coating handoff. This allows the scope to distinguish treatment capacity from handling, recovery and installation responsibilities instead of quoting only chamber width.
