Hard Chrome (HCr)
Dense, micro-crack controlled coatings for extreme wear zones. Typical thickness 10–200 μm with post-grind to precision tolerance.
- Up to 68–72 HRC surface
- Precision OD/ID grinding
- Cylinders, dies, shafts, rollers
Chrome Plating & Surface Engineering
Mirror-grade hardness, corrosion resistance, and low friction—engineered for real-world uptime. At Highline, we apply industrial hard chrome and modern trivalent chrome systems across shafts, rollers, molds, and wear-critical tooling. The result: longer service life, stable tolerances, and lower total cost of ownership.
Trivalent Chrome (Cr³⁺)
Next-gen decorative and functional chrome with improved sustainability vs. hexavalent systems—bright, durable, RoHS-aligned.
- High-gloss & satin finishes
- Superior corrosion protection
- Color stability & uniformity
Repair & Restore
Dimensional build-up and re-chroming to recover worn or damaged parts—faster and more economical than new manufacture.
- Controlled re-plating
- Post-grind to spec
- Full inspection reports
Process you can trust
1
Prep & Mask
De-grease, strip (if required), grit-blast, and precision masking to protect non-plate areas.
2
Plate
Hard/Trivalent chrome deposition with real-time current density control for uniform thickness.
3
Finish
Post-plate grind, polish, or hone to target Ra and dimensional tolerance.
4
Inspect
Thickness mapping, hardness checks, adhesion tests, and CoC documentation.
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Traceable Materials
Applications
Hydraulic Rods
Molds & Dies
Food-Grade Rollers (SS)
Packaging Shafts
Conveyors & Guides
Pump Components
Tooling & Jigs
FAQs
Is trivalent chrome as durable as hexavalent?
Yes—modern Cr³⁺ systems deliver excellent durability and corrosion protection while aligning with current environmental directives.
How do you control thickness and uniformity?
We design anode/cathode setups and control current density per geometry, then validate with thickness mapping and micro-section checks.
Do you offer repair of worn shafts/rollers?
Absolutely. We strip, re-plate to required build-up, then grind/polish to final tolerance. It’s fast and highly cost-effective.
What documentation is provided?
Certificate of Conformance, thickness & hardness records, and full traceability upon request.
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Aluminum Engineering & Fabrication
Lightweight strength, clean machinability, and excellent corrosion resistance—engineered for performance. Highline delivers precision aluminum parts and assemblies across 1xxx–7xxx series with extrusion, sheet forming, CNC machining, TIG welding, and premium surface finishing (anodizing & powder coat). From food-grade frames to heat-dissipating structures, we build durable, export-ready solutions—on spec and on schedule.
Extrusions & Profiles
Custom die design and tight-tolerance aluminum extrusions for enclosures, machine frames, and guides.
- Alloy focus: 6060/6061/6063/6082
- Length up to 6–12 m (per line)
- Post-cut, drilling, tapping & kitting
Sheet & Machining
Laser cutting, bending, and CNC milling/turning with fine finishing for precision assemblies.
- ±0.05 mm forming, ±0.01 mm CNC
- TIG welding (food-grade capable)
- Ra down to 0.4 μm after polish
Finishing & Protection
Functional and decorative finishes that last in real environments.
- Clear/colored anodizing (Type II/III)
- Pretreatment & powder coating
- Salt-spray & adhesion tests
Our Aluminum Process
1
Design & Material
Alloy selection (1xxx–7xxx) and DFM review for rigidity, weight, and cost.
2
Form & Machine
Extrusion/sheet forming, CNC milling/turning, drilling, tapping, and fixtures.
3
Join & Finish
TIG welding, surface prep, anodizing or powder, and assembly.
4
Inspect & Pack
Dimensional checks, finish verification, and export-ready packing.
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Traceable Materials
Applications
Machine Frames
Food-Grade Structures
Conveyors & Guards
Enclosures & Panels
Heat Sinks & Housings
Packaging Equipment
Marine & Outdoor
FAQs
Which aluminum alloys do you recommend?
For structural frames we typically use 6061/6082, for profiles 6060/6063, for high-strength parts 7075 where applicable,
and for decorative anodizing 5xxx/6xxx depending on finish requirements.
Can you meet food-grade requirements?
Yes—TIG welding with sanitary practices, food-safe finishes, and materials traceability are available upon request.
Do you supply assemblies or just parts?
Both. We can deliver sub-assemblies with hardware, inserts, gaskets, and QC documentation.
What about outdoor or marine environments?
We combine anodizing with appropriate seals and hardware; powder coating with pretreatment is also available.
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