Choosing a conveyor shot blasting machine requires a match between workpiece handling, blast access and the required surface result. Define the product range and complete production cycle before comparing conveyor speed, wheel power or equipment price.
Start with the Workpiece Envelope
List dimensions, mass, material, incoming condition and geometry. Identify surfaces requiring treatment, contact-sensitive features, masking requirements and the permitted load arrangement. Include the smallest and largest products as well as difficult shapes.
Specify visual cleanliness, profile and contamination checks appropriate to the next operation. An industry label such as automotive or aerospace does not independently determine the right conveyor or process qualification.
Compare Handling Configurations
Roller conveyors can support suitable plates, profiles and other products that remain stable on the rollers. Verify support spacing, transfer points and any surfaces affected by contact or geometry.
Mesh-belt arrangements support compatible parts on an open conveyor, but require checks for part stability, openings, shielding and belt interaction. “Mesh belt” and “wire mesh belt” may describe the same general arrangement; confirm the actual construction rather than treating the names as necessarily different machine categories.
Overhead conveyors suspend work on fixtures or hangers. Review fixture strength, load stability, movement and blast access. Suspension or rotation does not guarantee complete coverage of recesses or contact areas.
| Configuration | Key trial question |
|---|---|
| Roller conveyor | Can the full product range travel stably and receive the specified treatment? |
| Mesh belt | Do small or delicate parts remain supported without unacceptable shielding or damage? |
| Overhead conveyor | Does the fixture expose the required surfaces and allow safe handling? |
Establish Capacity at an Accepted Finish
Test representative products under the proposed load spacing and incoming condition. Inspect the required surface locations, including ends, recesses and contact areas. Record abrasive characteristics, settings and movement during the trial.
Conveyor speed alone is not accepted output. Include loading, product spacing, changeovers, unloading, inspection and rework in the production review. A higher wheel rating does not independently establish cleaning quality or the suitability of a process for thin parts.
Review Abrasive and Dust Systems
Confirm the abrasive material and size permitted by the actual wheel, recovery and separator configuration. Do not assume that every wheel machine can use any abrasive listed in a general buying guide.
Review recovery access, working-mixture checks, carryout and waste discharge. For extraction, assess the contaminants, enclosure openings, ducting and collector as a system. A filter efficiency percentage is not a substitute for commissioning and workplace or emission assessment.
Compare the Installed Scope and Operating Assumptions
Obtain quotations against the same layout, utilities, transfers, controls and acceptance requirements. Separate equipment, installation, training, initial consumables and spares. Avoid generic machine-price or abrasive-cost bands as the basis for a purchase decision.
When comparing energy, distinguish power in kW from energy in kWh. Measure the complete defined process at an equivalent accepted output where possible. Include abrasive additions, wear parts and maintenance assumptions alongside energy and staffing.
Confirm Controls, Access and Handover
Review guarding, interlocks, fault response and safe access for setup and maintenance. Define how the line responds to interrupted movement or loss of a necessary protective function. Confirm the operator tasks that remain during automated operation.
Require approved drawings, equipment instructions, wear-part identification and a documented acceptance plan. The final comparison should show the tested product envelope, demonstrated surface result, complete cycle and any unresolved integration requirements.
