Precision Surface Finishing

Custom Chrome Plated
Rollers

Industrial-grade hard chrome plated rollers engineered for extreme wear resistance, mirror-finish surface quality and dimensional precision — manufactured to your exact specification at Rapidaccu.

Ra 0.02μm
Min. Surface Roughness
70 HRC
Surface Hardness
±0.01mm
Diameter Tolerance
2500+mm
Max. Face Length
Custom Chrome Plated Roller by Rapidaccu

What Is a Chrome Plated Roller?

A chrome plated roller is a precision cylindrical roll whose outer surface has been electroplated with a layer of hard chromium. The chrome layer — typically 0.05 mm to 0.5 mm thick — delivers exceptional hardness, corrosion resistance and a mirror-like finish that dramatically reduces friction and extends service life compared with uncoated steel rolls.

Superior Hardness

Hard chrome achieves 65–70 HRC — far harder than most engineering steels — resisting wear, scratching and surface damage under heavy industrial loads.

Corrosion Resistance

The dense chrome layer forms a passive oxide barrier, protecting the roll body from moisture, acids, alkalis and industrial chemicals.

Mirror-Finish Surface

Post-plating grinding and super-finishing achieve Ra values as low as 0.02 μm, essential for film extrusion, lamination and precision web handling.

Low Friction

Chromium’s naturally low coefficient of friction reduces drag, energy consumption and heat generation in high-speed web and film production lines.

Rebuilding & Re-plating

Worn chrome rolls can be stripped, re-ground and re-plated to original dimensions — making chrome the most cost-effective long-term surface treatment for rollers.

Technical Specifications

Standard capabilities — all parameters fully customisable on request

Parameter Specification
Roller Diameter Range 20 mm – 800 mm (custom beyond range available)
Face Length Up to 2500 mm standard; longer on request
Chrome Layer Thickness 0.05 mm – 0.5 mm (hard chrome); decorative chrome also available
Surface Hardness 65–70 HRC (hard chrome); 45–55 HRC (decorative chrome)
Surface Roughness (Ra) Ra 0.02 μm – Ra 1.6 μm (mirror to matte)
Diameter Tolerance ±0.01 mm standard; ±0.005 mm precision grade
Cylindricity 0.005 mm – 0.015 mm depending on length
Base Material Carbon steel, alloy steel, stainless steel, aluminium, cast iron
Operating Temperature -20°C to +250°C
Shaft End Options Hollow, solid, stepped, threaded, keyway, flange-mounted
Max. Load Capacity Determined by core diameter, material and bearing selection
Chrome Types

Hard Chrome vs.
Decorative Chrome

Not all chrome plating is the same. Rapidaccu offers both industrial hard chrome and decorative bright chrome depending on your application’s functional or aesthetic requirements.

Hard Chrome (Industrial)
  • › Layer thickness: 0.05 – 0.5 mm
  • › Hardness: 65 – 70 HRC
  • › Primary purpose: wear and corrosion resistance
  • › Ideal for: printing, packaging, calendering, steel mills
Decorative Chrome (Bright)
  • › Layer thickness: 0.0003 – 0.001 mm over nickel
  • › Hardness: 45 – 55 HRC
  • › Primary purpose: aesthetic finish + mild corrosion protection
  • › Ideal for: consumer goods, display equipment, light-duty guides
Plating Process

Rapidaccu Chrome
Plating Process

01
Surface Preparation
Degreasing, shot blasting and pre-grinding to achieve a uniform base surface; critical for chrome adhesion.
02
Electroplating Bath
Precision-controlled hexavalent or trivalent chromium bath with tightly monitored temperature (50–60°C), current density and bath chemistry for uniform deposition.
03
Post-Plating Grinding
CNC cylindrical grinding to remove chrome high-spots, restoring final diameter tolerance of ±0.01 mm or better.
04
Super-Finishing
Lapping or polishing to achieve Ra 0.02 – 0.4 μm mirror finish for critical web-handling and film extrusion applications.
05
Inspection & Certification
100% CMM dimensional check, profilometer surface measurement, adhesion test, and hardness verification before dispatch.

Industries & Applications

Chrome plated rollers are the workhorse of precision web and materials processing across industries where surface quality, wear resistance and dimensional accuracy are non-negotiable.

Printing & Publishing

  • •Impression rollers for offset and flexographic presses
  • •Ink transfer and metering rolls
  • •Web tension guide rollers
  • •UV curing pass rolls

Packaging & Lamination

  • •Laminating and coating nip rollers
  • •Film slitting and rewinding guide rolls
  • •Corrugated board pressure rolls
  • •Heat seal backing rollers

Plastics & Film Extrusion

  • •Chill rolls for rapid film quenching
  • •Calender stack rolls in PVC and PET sheet lines
  • •Embossing and smoothing rolls
  • •Tension idler rolls

Textile & Nonwovens

  • •Calendering rolls for fabric finishing
  • •Sizing and padding mangle rolls
  • •Spunbond compaction rolls
  • •Dyeing and finishing guide rolls

Steel & Metal Processing

  • •Skin-pass and temper mill work rolls
  • •Levelling and straightening rolls
  • •Strip-coating line backup rolls
  • •Galvanising pot rolls

Paper & Board

  • •Paper machine press and smoothing rolls
  • •Coating and size-press applicator rolls
  • •Supercalender top rolls
  • •Reel spool and winder rolls

Base Material Options

The chrome plating is only as good as the substrate beneath it. Rapidaccu selects the optimal base material for each application.

Material Key Properties Typical Applications
Carbon Steel (45#, Q235) Cost-effective, machinable, good strength Conveying, light web handling, general industrial
Alloy Steel (42CrMo, GCr15) High core hardness, fatigue resistance Rolling mills, press rolls, high-load applications
Stainless Steel (304, 316L) Excellent corrosion resistance, food-grade Food processing, pharmaceutical, wet environments
Aluminium Alloy (6061, 7075) Lightweight, high stiffness-to-weight ratio High-speed film lines, aerospace, printing
Cast Iron (HT250, Nodular) Vibration damping, cost-effective for large diameters Paper mills, calendering, large calender rolls

Customisation Options

Every Rapidaccu chrome plated roller is engineered to your specification. Tell us what you need.

Geometry

Straight, crowned, tapered, hollow or combination profile; any shoulder, step or groove configuration

Chrome Thickness

0.05 mm to 0.5 mm hard chrome; specified in increments to match wear expectation and re-grind allowance

Surface Finish

Mirror polish Ra 0.02 μm, precision ground Ra 0.2 μm, matte satin Ra 0.8–1.6 μm, textured or knurled

Internal Cooling / Heating

Internal spiral, drilled or cast water/oil channels for chill roll or heat roll configurations combined with chrome surface

Shaft & End Fitments

Solid or hollow shafts, keyways, splines, threaded ends, flanged mountings, journal or antifriction bearing seats

Dynamic Balancing

G2.5, G1.0 or G0.4 balance grade available for high-speed rolls to eliminate vibration and web flutter

Why Choose Rapidaccu

Rapidaccu is a dedicated precision roller manufacturer — not a general engineering shop. Chrome plated rollers are a core product, not a side service.

In-House End-to-End

CNC turning, plating, cylindrical grinding and super-finishing all performed under one roof — no outsourcing of critical operations, zero hand-off risk.

Engineering Support

Application engineers help you select chrome thickness, base material, surface finish and balance grade — free of charge, before you commit to an order.

CMM & Profilometer QC

Every roll is measured with a Zeiss CMM and surface roughness checked with a Mahr profilometer. Full inspection reports shipped with every order.

Rebuild & Re-plate Service

We strip, re-grind and re-plate your existing rollers to original spec — cutting replacement costs by 40–60% versus buying new rolls.

Fast Lead Times

Standard rollers ship in 2–4 weeks. Rush service available for urgent replacement rolls with priority scheduling and express logistics.

Global Export Experience

Rolls shipped worldwide in custom-fabricated wooden crates with moisture-barrier wrapping. CE documentation and material certs included as standard.

How to Order

A streamlined four-step process from enquiry to delivery

1

Submit Enquiry

Share your drawing, sample or key parameters (diameter, length, chrome thickness, surface finish, application) via the quote form below.

2

Engineering Review

Our engineers review your requirements, confirm specifications, suggest optimal chrome thickness and base material, and provide a detailed quotation within 24 hours.

3

Manufacture & Plate

CNC turning, grinding, plating, post-plating grinding and super-finishing completed in our Shenzhen facility with continuous in-process QC checks.

4

Inspect & Ship

Final CMM and profilometer inspection, photographic documentation, custom protective crating and worldwide DDP or EXW shipping with full traceability.

Frequently Asked Questions

Common questions about custom chrome plated rollers

What is the difference between hard chrome and decorative chrome on rollers?

Hard chrome (industrial chrome) is deposited in a thick layer (0.05–0.5 mm) directly onto the steel substrate, achieving 65–70 HRC hardness for wear, corrosion and friction resistance. Decorative chrome is a very thin flash (0.0003–0.001 mm) applied over a nickel layer primarily for appearance, offering only mild corrosion protection. For industrial roller applications, hard chrome is almost always required.

How smooth can you achieve a chrome plated roller surface?

After post-plating cylindrical grinding and lapping/super-finishing, we can achieve Ra values as low as 0.02 μm (mirror finish) on hard chrome rollers. Standard precision-ground finish is Ra 0.1–0.4 μm. Matte or satin finishes (Ra 0.8–1.6 μm) are also available for applications where grip or controlled friction is required. The surface roughness is verified with a calibrated Mahr profilometer.

Can you re-plate an existing chrome roller instead of making a new one?

Yes. We offer a full rebuild and re-plating service. The worn chrome is chemically stripped, the base metal is inspected and re-ground to remove fatigue damage, and a fresh chrome layer is deposited to restore the roll to its original dimensions and surface quality. Re-plating typically costs 40–60% less than a new roller and is recommended where the core is in good condition. Send us your worn roll for a free assessment.

What base material is best for a chrome plated printing roller?

For high-speed printing rolls, alloy steel (42CrMo) or hardened carbon steel (45#) provides the rigidity and core strength to prevent deflection under printing pressure. The chrome surface then delivers the required hardness (65–70 HRC), low friction and mirror finish (Ra 0.02–0.2 μm) needed for sharp ink transfer and consistent nip pressure. For lightweight high-speed applications, aluminium with hard chrome is an excellent option.

What tolerance can you hold on a chrome plated roller diameter?

Standard tolerance is ±0.01 mm on the finished chrome surface after post-plating grinding. For precision-grade applications such as film calenders, printing presses or semiconductor equipment, we can achieve ±0.005 mm. Cylindricity is held to 0.005–0.015 mm depending on roll length. All final dimensions are verified by CMM with full inspection reports provided.

How long does it take to manufacture a custom chrome plated roller?

Standard lead time is 2–4 weeks from approved drawing, covering CNC turning, pre-plating grinding, electroplating, post-plating grinding and final inspection. Complex rolls with internal cooling channels, large diameters (500+ mm) or precision grade tolerances may require 4–6 weeks. Rush manufacturing (7–10 days) is available for urgent replacement rolls — please advise at time of enquiry.

Can chrome plated rollers be combined with internal water cooling?

Absolutely. Rapidaccu manufactures chrome-plated chill rollers with internal spiral water channels for rapid product quenching in film extrusion and lamination lines. The water channel is precision-machined in the roller body before plating, and the chrome surface is then applied to deliver the required surface hardness, smoothness and corrosion resistance. Rotary unions for cooling water connection are also supplied or specified on request.

What information do I need to provide to get a quote?

To prepare an accurate quotation we need: (1) roller diameter and face length; (2) chrome layer thickness or intended service life; (3) required surface finish (Ra value or description); (4) base material preference or application environment; (5) shaft end configuration and mounting details; (6) quantity and delivery schedule. A technical drawing or sample is ideal but not mandatory — our engineers can work from a basic description to produce a drawing for your approval.

Request a Quote

Tell us your chrome roller requirements — our engineers will respond within 24 hours

Contact Rapidaccu

Address
Rongli Industrial Park,
Dalang, Longhua District,
Shenzhen, China
When You Contact Us, Include:
  • ✓Roller diameter & face length
  • ✓Chrome layer thickness required
  • ✓Required surface finish (Ra value)
  • ✓Quantity & delivery timeline
  • ✓Drawing or sample (if available)