This machine takes stainless steel sheet through a controlled polishing sequence and delivers a uniform hairline (HL) finish, with SB (Scotch-Brite) capability in the same line. Abrasive heads run in sequence, each one finer than the last, so the surface moves from a ground state to hairline without changing setup.
What This Machine Does
Hairline gives long, unbroken directional lines — the HL look used on facades and lift doors. SB, also known as vibration or swirl finish, gives a non-directional soft matte surface driven by rotating disc brushes. Combining both in one line matters commercially: they are specified by different customers, and running both from one machine reduces the capital tied up in a second line.
Features
- Belt abrasive plus brush abrasive stations — belt for direction, brush for the non-directional matte, in one sequence
- Wet roller brushing — controls heat, extends brush life and stabilises the finish on continuous runs
- Multi-head layout — 2 to 4 working units, each finer than the last
- PLC control with recipe storage — settings held per grade and finish
- Stainless internal construction — resists corrosion in a wet environment
How to Choose Between HL and SB
- Hairline (HL) — directional, fine parallel lines, moderate reflectivity. Chosen where the design intent is a clean linear surface: elevator doors, facade panels, premium appliances.
- SB / Scotch-Brite — non-directional matte, hides fingerprints and minor scratches, easier to clean. Chosen for food service equipment, medical fittings and high-wear architectural details.
Both can run from the same machine. The switch is parameters and which stages are active, not a machine change.
Typical Operating Conditions
- System — wet roller brushing
- Sheet size — 1250×2500 mm and 1550×3000 mm, customised available
- Working width — 900 / 1250 / 1500 mm, customised available
- Sheet thickness — 0.3–4.0 mm
- Line speed — 6–25 m/min
- Working units — 2 to 4 polishing heads
- Brush station — SB
- Roller dimensions — 350 mm OD × width
- Machine weight — 11 T
Common Defects and How to Prevent Them
- Brush lines instead of a soft matte — brush pressure or speed too high for SB; reduce and let the compound carry the finish.
- Interrupted directional lines on HL — the upstream grinding pattern is not uniform.
- Uneven sheen across batches — recipe not being recalled per finish.
- Glazing on rotating brushes — heat; verify wet roller delivery is reaching the brush nip.
Typical Applications
Elevator doors and cabs, architectural cladding, food service and medical equipment, home appliances, bathware and decorative panels.
Packing & Delivery
Section-by-section testing before shipment, foam edge protection, transparent film wrapping and iron rope securing. Engineers remain responsible for their section through dispatch.
FAQ
What grades of stainless steel can this polishing machine handle?
200 and 300 series including 201, 304 and 316, plus 430. Brush and compound profile is set for your grade when the line is built.
What is involved in installation?
Foundation and service connections, machine positioning, then commissioning with your material. Installation scope is agreed with the order, with training covering operation, parameters and routine maintenance.
Can one machine produce both hairline and SB?
Yes — that is the point of combining belt and brush stations. Both finishes run from the same machine by changing parameters and activating the relevant stages.