What must be checked for a long tank?

This table specifies diameter but no fixed tank length. Confirm head reach, shell length, roller spacing, balance, openings and the complete installation layout. Diameter alone does not define usable polishing access.

Are 6,000 mm diameter and 20-ton support included as standard?

No. The standard diameter range is 500-5,000 mm and the standard roller load is 2 tons. Extension to 6,000 mm and support up to 20 tons are optional configurations requiring separate confirmation.

Can the machine finish behind internal fittings?

Do not assume so. Internal suitability depends on the entry opening, distance to the working area, fitting positions and tool clearance. Provide a drawing identifying every surface that must be reached.

How do the roughness, output and synchronization figures relate?

The page lists Ra ≤0.4 µm, 8 m2/hour continuous mirror-finishing output and synchronization error below 0.5%. These measure different aspects of the process and control. Validate the required finish and complete-cycle output on representative parts; synchronization does not itself guarantee roughness.

Is dust collection part of the standard equipment?

Dust collection is listed as an option, along with automatic tool changing and heavier roller supports. Confirm the supplied scope and extraction requirements for the selected material and process.

Tank Polishing Machine

Tank Surface Finishing for Vessel Fabricators

This Tank Polishing Machine is for workshops producing medium and large cylindrical vessels: storage and reaction tanks, stainless-steel process equipment and other tank components with defined surface-finish requirements. Its listed dual-head configuration combines roller-supported workpiece rotation with PLC recipe control for the selected internal or external surface.

The diameter range is 500-5,000 mm, with extension to 6,000 mm optional. Before choosing a configuration, identify whether the job is broad shell finishing, local weld blending or an internal surface reached through an opening. These tasks can require different tools and working positions even on tanks of the same diameter.

Tank exterior polishing arrangement with abrasive heads above a cylindrical workpiece on roller supports — Roller-supported tank exterior polishing reference. The pictured head arrangement is not a confirmation of the number of heads or load rating supplied with this product.

Check Shell Access Before Comparing Capacity

Exterior shell: review the full tank length, support spacing, roundness and areas interrupted by nozzles or brackets.
Interior surface: show the entry opening, distance to the finishing area and internal fittings. A listed diameter range is not a guarantee of internal access.
Workpiece support: specify weight, balance and the roller contact zones. A support adequate for one empty shell may not suit a differently assembled vessel.

Coordinate Rotation, Head Travel and Abrasives

The listed system links beam feed and roller rotation through dual-inverter control. PLC/HMI recipes organize the polishing stages; the current configuration description also includes constant-pressure operation, PID speed control and overload protection. Reusing a recipe requires the same validated workpiece support, tooling and incoming condition.

The spindle motor is rated at 5.5 kW with stated torque of 35 N-m. The modular quick-change abrasive system allows the preparation and finishing stages to be arranged around permitted removal and final texture. Raised weld material and the final shell appearance should be reviewed as separate stages, not treated as a single universal polishing pass.

Current Product Specifications

Parameter	Listed specification
Workpiece diameter	500-5,000 mm; expandable to 6,000 mm
Power	8 kW total; 5.5 kW spindle motor
Rated motor torque	35 N-m
Control system	PLC and dual-axis inverter synchronous drive
Speed range	1-20 rpm, stepless adjustment
Abrasive system	Modular quick-change system
Listed surface roughness	Ra ≤0.4 µm
Listed efficiency	8 m2/hour for continuous mirror finishing
Roller load	Standard 2 tons; upgradable to 20 tons
Listed synchronization error	Less than 0.5%

The standard roller load is 2 tons; upgrading to 20 tons is optional. Likewise, the 6,000 mm diameter extension is not part of the standard 500-5,000 mm range. No fixed tank length is specified in this table, so head reach and support layout must be reviewed against the complete vessel drawing.

Approve the Finish and the Complete Production Cycle

The listed Ra ≤0.4 µm, 8 m2/hour continuous mirror-finishing output and synchronization error below 0.5% are current page values. Roughness, output and drive synchronization are different measurements: a synchronization figure is not proof of a particular surface finish. Agree the applicable measurement conditions for the supplied configuration.

Provide representative material and the actual starting surface, including welds or previous grinding marks.
Approve the abrasive stages and examine the defined surfaces after cleaning.
Record the finish measurement or appearance comparison and any dimensional change.
Time loading, support adjustment, polishing, consumable changes, cleaning and inspection before calculating production output.

Options and Installation Scope

Automatic tool changing, dust collection and heavier roller supports are listed as optional choices. Confirm the delivered scope, electrical and extraction requirements, lifting route, roller spacing, operator access and maintenance space in the installation drawing.

For combined shell and dished-head production, compare the Tank & Dished End Polishing Machine. For a job concentrated on a circular weld rather than the whole shell, review the Circumferential Weld Seam Polishing Machine.