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Correntes transportadoras padrão de passo duplo

Correntes transportadoras padrão de passo duplo

Correntes transportadoras de passo duplo As correntes de rolos de passo duplo possuem um passo maior do que as correntes de rolos padrão. Essas correntes são frequentemente usadas em aplicações de transporte e estão disponíveis em diversos modelos. Podem ter placas laterais retas ou curvas, e muitas apresentam recursos adicionais. Projetos personalizados também estão disponíveis. As correntes de rolos de passo duplo são comumente usadas em equipamentos agrícolas, de construção e pavimentação de estradas. Também podem ser usadas em máquinas de embalagem e têxteis.

REF: 269126 Categoria:

Descrição

ISO C208A – C232A · ANSI C2040 – C2162

Correntes transportadoras padrão de passo duplo

Carbon steel roller chains with twice the pitch of standard drive chain — lighter weight, lower cost per metre, and full compatibility with ISO / ANSI double pitch sprockets. Pitches 25.40 mm to 101.60 mm. Ultimate tensile strength 14.1 kN to 226.8 kN. Small roller (R) and large roller (S) variants. Pre-stretched and pre-lubricated at the factory. Manufactured to ANSI B29.4 · ISO 1275 · JIS B 1803.

14

Chain sizes

25.4–101.6

Pitch range (mm)

14.1–226.8

Tensile strength (kN)

R & S

Roller types

3

Standards met

Overview

What Is a Double Pitch Conveyor Chain?

Corrente transportadora de passo duploA double pitch conveyor chain shares the same pin diameter, roller diameter, and inner plate depth as a standard roller chain — but the pitch (pin-centre-to-pin-centre distance) is exactly doubled. Halving the number of links per metre delivers two immediate engineering advantages: lower mass per unit length and a lower component cost. These gains make double pitch chains the preferred choice wherever conveying speed does not require the tight pitch of a power-transmission chain.

The extended pin design accommodates a wide range of standard and custom attachments — K-type, A-type, SA-type, and SK-type side-plate tabs for flights, scrapers, pusher dogs, carrier fingers, and crossbar rods. Hollow-pin variants accept cross rods and mesh netting directly through the chain width.

Because the sprocket pitch circle is larger than an equivalent single-pitch sprocket of the same tooth count, the polygon effect is reduced — less vibration and quieter operation in packaging lines and textile equipment where smooth product transfer matters.

Technical Data

Full Specification Table

Two roller-diameter / weight-per-metre values where listed = small (R) roller first, large (S) roller second. “H” suffix = heavy-duty thick plate.

ISO No. ANSI No. Pitch P (mm) Roller ø d₁ (mm) Inner width b₁ (mm) Pin ø d₂ (mm) Plate depth h₂ (mm) Plate thick. T (mm) UTS Q min (kN) Weight q (kg/m)
C208A / C208AL C2040 / C2042 25.40 7.95 / 15.88 7.85 3.96 12.0 1.50 14.1 0.50 / 0.84
C208AH C2040H 25.40 7.95 7.85 3.96 12.0 2.03 14.1 0.65
C208B / C208BL — 25.40 8.51 / 15.88 7.75 4.45 11.8 1.60 18.0 0.55 / 0.89
C210A / C210AL C2050 / C2052 31.75 10.16 / 19.05 9.40 5.08 15.0 2.03 22.2 0.78 / 1.27
C212A / C212AL C2060 / C2062 38.10 11.91 / 22.23 12.57 5.94 18.0 2.42 31.8 1.12 / 1.61
C212AH / C212AHL C2060H / C2062H 38.10 11.91 / 22.23 12.57 5.94 18.0 3.25 31.8 1.44 / 2.07
C216A / C216AL C2080 / C2082 50.80 15.88 / 28.58 15.75 7.92 24.0 3.25 56.7 2.08 / 3.12
C216AH / C216AHL C2080H / C2082H 50.80 15.88 / 28.58 15.75 7.92 24.0 4.00 56.7 2.54 / 3.58
C220A / C220AL C2100 / C2102 63.50 19.05 / 39.67 18.90 9.53 30.0 4.00 88.5 3.01 / 4.83
C220AH / C220AHL C2100H / C2102H 63.50 19.05 / 39.67 18.90 9.53 30.0 4.80 88.5 3.56 / 5.38
C224A / C224AL C2120 / C2122 76.20 22.23 / 44.45 25.22 11.10 35.7 4.80 127.0 4.66 / 7.66
C224AH / C224AHL C2120H / C2122H 76.20 22.23 / 44.45 25.22 11.10 35.7 5.60 127.0 5.26 / 8.26
C232A / C232AL C2160 / C2162 101.60 28.58 / 57.15 31.75 14.27 47.8 6.40 226.8 8.15 / 13.00
C232AH / C232AHL C2160H / C2162H 101.60 28.58 / 57.15 31.75 14.27 47.8 7.20 226.8 9.06 / 13.84

Standard series (A / B)
Heavy-duty series (H) — thicker plates
Orange values = key selection parameters (pitch & UTS)

Product Detail

Key Features & Construction

Padrão

ANSI B29.4 · ISO 1275 · JIS B 1803

Base Material

Carbon steel (standard) · 304 / 316 stainless available

Surface Finish

Black oxide outer plates · nickel-plated & zinc-plated options

Roller Options

R-roller (flush) · S-roller (oversized, projects above plates)

Bushing & Rollers

Solid bushing · solid rollers (not hollow shell)

Factory Prep

Pre-stretched · pre-lubricated — reduces break-in elongation

Attachment Types

K1/K2 · A1/A2 · SA1/SA2 · SK1/SK2 · custom on request

Hollow-Pin Variant

Available — accepts crossbars, mesh netting, custom fixtures

Supply Length

Standard 10 ft (3.048 m) box · custom reels & cut lengths

Elo de ligação

1 cottered connecting link per box · offset links available

Variants

Chain Type Guide

R-Roller (Small Roller) — Standard

The R-roller sits flush within the link plates. Most common configuration — used wherever the chain runs on conventional guide rails or over sprocket teeth. Suitable for all standard conveyor applications. ISO suffix: none (e.g., C208A, C212A, C216A). Select the R-roller when space between the chain and guide rail is restricted.

R

Roller type

S-Roller (Large / Oversized Roller)

The S-roller projects above and below the link plates. Chosen when the conveyed product sits directly on the chain — the larger surface distributes the load and reduces point stress. The roller also rolls on the support rail directly, rather than the plate edges, which sharply reduces rail wear in long conveyor systems. ISO suffix: “L” (e.g., C208AL, C216AL). Minimum recommended sprocket tooth count: 30 teeth.

S

Roller type

Heavy-Duty (H) Series — Thicker Plates

“H” suffix indicates thicker outer and inner link plates — for example, 2.03 mm versus 1.50 mm at the 25.40 mm pitch. Average tensile strength rises by 3–10% over the standard series; weight per metre increases proportionally. Use the H series when shock loading, frequent starts under load, or heavily loaded inclines are expected. Available in both R and S roller configurations.

H

Série

Hollow-Pin Double Pitch Chain

Replaces the solid pin with a hollow-bore tube, allowing cross rods, cleats, and mesh netting to pass through the full chain width. Used in inclined conveyors for small parts, bakery proofing ovens, laundry tunnel washers, and fish/poultry processing. Interfit with standard double pitch sprockets and can run alongside standard corrente de rolos on a shared drive. No rollers — relies on the flat pin surface for support rail contact.

HP

Hollow pin

Where They Work

Typical Applications

Agriculture & Harvesting

Combine feeders, grain elevators, cotton pickers, bale conveyors. S-roller standard on cotton-field conveyors — the oversized roller prevents crop material from jamming between chain and rail.

Recommended: C210AL · C212AL · C216AL

Packaging Machinery

Indexing conveyors, carton erectors, labelling lines. Larger pitch provides positive registration; lighter weight reduces motor load on long runs. Low polygon effect = quieter operation.

Recommended: C208A · C210A · C212A

Textile Industry

Fabric transport, tentering frames, dyeing lines. Pre-lubricated construction prevents oil spotting on sensitive materials. Stainless steel variants handle wet-process environments.

Recommended: C208A SS · C210A SS

Construction & Road Equipment

Asphalt pavers, concrete batching plants, aggregate conveyors. Heavy H-series chains in large pitches handle high-tension, high-impact duty cycles in abrasive environments.

Recommended: C224AH · C232AH · C232AHL

Processamento de Alimentos

Bottle lines, can handling, pasteurisers, washdown zones. Stainless steel and nickel-plated variants comply with food-contact hygiene requirements. Hollow-pin versions accept wash-down mesh netting.

Recommended: C208A SS · C210A SS · HP variants

General Material Handling

Parts washing, assembly line indexers, paint line hangers, auto-body conveyors. C208A and C210A cover the majority of light-to-medium duty conveyor layouts in automotive and electronics manufacturing.

Recommended: C208A · C210A · C212A

Engineering

How to Select the Correct Chain

01

Calculate the design load

Multiply maximum working load by a service factor (1.5–2.0 smooth; 2.0–3.0 moderate shock). Divide the ultimate tensile strength Q by the design load. Target a minimum factor of safety of 7:1. If UTS ÷ design load < 7, step up to the next chain size.

02

Confirm the pitch

For speeds below 30 m/min with loads under 5 kN, start with C208A (25.40 mm pitch). Increase pitch for heavier loads or where a larger sprocket diameter is structurally advantageous. Avoid oversizing — larger pitch means larger, heavier sprockets throughout the system.

03

Choose roller type

Select S-roller (L suffix) when the conveyed item rests on the chain surface. Select R-roller for enclosed guide-rail systems or where vertical clearance is restricted. S-roller requires ≥ 30 sprocket teeth for smooth meshing.

04

Consider the operating environment

Outdoor / wet: black oxide or zinc-plated. Washdown / food-contact: 304 or 316 stainless steel. High temperature (> 200 °C): heat-resistant grade — contact our engineering team. Abrasive dust / grit: add external lubrication or specify self-lubricating bushings.

05

Specify attachments

Identify attachment type (K, A, SA, SK), mounting side (inner or outer plate), and spacing (every link, every 2nd link, etc.). Provide a dimensioned sketch or DXF for non-standard attachment geometry. We confirm feasibility and supply a sample before production.

Matched Components

Double Pitch Sprockets

Double pitch conveyor chain sprockets use a specific tooth geometry for the doubled pitch — standard single-pitch sprockets of the same tooth count will not mesh correctly and will cause rapid wear of both chain and sprocket. We supply precision-machined flame-cut steel sprockets in three hub configurations:

Type A

Flat plate, no hub projection. Bolted to a flange or disc. Lowest cost — light-duty applications.

Type B

Single-sided hub extension. Keyway and set-screw mounting. Most common general-purpose configuration.

Type C

Double-sided hub. Mid-shaft mounting or where end-float must be minimised.

Stocked for tooth counts 13T – 60T in C208A, C210A, C212A, and C216A pitches. Non-stock tooth counts and bore sizes machined to order — standard lead time 10–15 business days. Split sprockets available where shaft removal is impractical.

Fabricantes de correntes de rolos

Supply & Logistics

Packaging & Ordering

Standard pack

10 ft (3.048 m) reinforced export carton, one cottered connecting link per box, individually bagged against corrosion.

Custom lengths

50 ft / 100 ft bulk reels or any cut length for OEM orders. Minimum 10 m per configuration for custom attachment chains.

MOQ

One box for standard catalogue items. Samples available for qualification testing — request with chain number and length required.

Tempo de espera

Stock items ship in 3–5 business days. Custom attachment and non-standard grades: 10–20 business days ex-factory.

Ready to order or need a sample?

Tell us your ISO or ANSI chain number, roller type, attachment requirements, quantity, and delivery country. Our technical team responds within one business day.

editado por gzl

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