Περιγραφή
ISO C208A – C232A · ANSI C2040 – C2162
Τυπικές αλυσίδες μεταφοράς διπλού βήματος
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.
Overview
What Is a Double Pitch Conveyor Chain?
A 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 |
Heavy-duty series (H) — thicker plates
Orange values = key selection parameters (pitch & UTS)
Product Detail
Key Features & Construction
Variants
Chain Type Guide
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
Επεξεργασία Τροφίμων
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
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.
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.
Χρόνος παράδοσης
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.
