CHOHO Industrial Chain roller, conveyor, leaf, cement elevator, MAN marine chains & RCL actuators

Supply heavy-duty industrial chains and mechatronic actuators manufactured by the CHOHO Industrial Chain Division (Qingdao Choho Industrial Co., Ltd. / Shanghai CHOHO Robot Co., Ltd.): ISO/ANSI A & B roller chains, T/HT series up to 2300 kN, SL/RO self-lubricating chains, BS double-speed conveyor chains, LH/LL leaf chains, NE/NSE cement elevator chains, MAN-certified marine diesel chains (48B–72B), RCL rigid push-chain platforms and the 17-DOF CHOHO Hand.

CHOHO ISO / ANSI Short-Pitch Precision Drive Roller Chains (A & B Series)

The CHOHO Industrial Chain Division manufactures ISO/DIN B-series and ANSI A-series short-pitch precision roller chains in simplex, duplex, triplex and quadruplex configurations, shot-peened and factory pre-loaded to minimize initial run-in elongation.

Simplex roller chains: from 08A-1 (12.7 mm pitch, 13.9 kN) and 06B-1 (9.525 mm, 8.9 kN) up to 48A-1 (76.2 mm, 556 kN) and 48B-1 (500 kN)
Duplex roller chains: from 08A-2 (27.8 kN) and 08B-2 (31.1 kN) up to heavy-duty 48A-2 (76.2 mm pitch, 1112 kN) and 48B-2 (1000 kN)
Triplex & quadruplex chains: up to 36A-3 (57.15 mm pitch, 843 kN), 32B-3 (50.8 mm, 670 kN) and 24B-4 (38.1 mm, 640 kN)
Available with cottered or spring-clip connecting links, offset links and matched A/B series sprockets

CHOHO Heavy-Duty High-Tensile Chains (T / HT / HS) & Self-Lubricating Chains (SL / RO)

For heavy shock loads in mining, steelmaking and oilfield machinery, CHOHO engineers T, HT and HS series high-tensile drive chains with thickened plates and through-hardened pins, alongside maintenance-free SL and RO oil-impregnated sintered-bushing chains.

Heavy-duty T series: from simplex 80T-1 (25.4 mm pitch, 74.2 kN) up to triplex 240T-3 (76.2 mm pitch, 1920 kN tensile load)
Ultra-high-tensile HT series: from 50HT-1 (15.88 mm, 30 kN) and 80HT-1 (82.5 kN) up to triplex 240HT-3 (2300 kN tensile load)
Maintenance-free SL & RO series (oil-impregnated powder metallurgy sleeve): 40-SL-1 (14.1 kN) to 160SL-3 (669 kN) and 120-RO (157 kN)
Specialty industrial series: high-fatigue resistance, high-wear resistance and corrosion-resistant plated/coated chains

CHOHO Straight-Plate Conveyor Chains, Double-Speed BS Chains & Hollow-Pin Chains

CHOHO manufactures a comprehensive range of material handling conveyor chains including straight-sideplate C08A/B–C32A/B chains, double-speed accumulation chains for assembly pallets, hollow-pin chains for cross-rod conveyors, double-pitch chains and sharp-top timber chains.

Standard straight-sideplate conveyor chains: C08A-1 to C32A-3 and C08B-1 to C32B-3 (12.7–50.8 mm pitch, up to 670 kN)
Double-speed accumulation chains: BS25-C206B (19.05 mm pitch, 7 kN), BS30-C206B (7 kN) and BS30-C216A (50.8 mm pitch, 55.6 kN)
Hollow-pin conveyor chains, double-pitch conveyor chains, and standard/custom bent or straight attachment plate chains
Sharp-top chains for timber transport, side-bow curve chains and rubber-attached non-marking conveyor chains

CHOHO Heavy-Duty (LH / BL) & Light-Duty (LL / AL) Forklift Leaf Chains

CHOHO leaf chains consist of interlaced high-tensile steel link plates and case-hardened pins, engineered for forklift truck masts, reach stackers, machine tool counterweights and hydraulic lifting tables.

Heavy-duty LH (BL) series: from LH2022 (31.75 mm pitch, 2×2 lacing, 115.6 kN) up to LH3266 (50.8 mm pitch, 6×6 lacing, 867.4 kN)
Core forklift mast sizes: LH2034 (193.5 kN), LH2044 (231.2 kN), LH2444 (338 kN), LH2844 (462.6 kN) and LH3244 (578.3 kN)
Light-duty LL (AL / EL) series: from LL8022 (12.7 mm pitch, 2×2 lacing, 18 kN) and LL1022 (29 kN) up to LL3266 (50.8 mm pitch, 780 kN)
Shot-peened link plates and controlled pin riveting ensure high fatigue resistance under continuous hoisting cycles

CHOHO Heavy Engineering Chains: Cement Elevator (NE / NSE) & Palm Oil Chains (ZYP)

CHOHO engineering chains are built for 24/7 operation in abrasive clinker dust, corrosive organic acids and high temperatures across cement bucket elevators, palm oil mills, sugar refineries, automotive body-in-white welding lines and nitrile glove dipping lines.

NE cement bucket elevator chains: from NE15-101.6 (101.6 mm pitch, 100 kN) and NE30-152.4 (150 kN) up to NE500-350 (350 mm pitch, 1200 kN)
NSE high-speed bucket elevator chains: from NSE100-150 (150 mm pitch, 330 kN) up to NSE800-175 (175 mm pitch, 1500 kN tensile load)
ZYP palm oil mill chains (solid & hollow pin): ZYP101.6V1, ZYP152.4V1 (100 kN), ZYP152.4V2 (220 kN) and ZYP152.4V3 (450 kN)
Industry-specific lines: sugar mill carrier chains, automotive assembly & welding line chains, and glove dipping production chains

MAN-Certified Marine Diesel Roller Chains (48B, 56B, 64B, 72B) by CHOHO

Qingdao Choho Industrial Co., Ltd. is the only domestic Chinese manufacturer certified by MAN Energy Solutions to produce heavy-duty marine roller chains for camshaft and moment-compensator drives in low-speed two-stroke marine diesel engines.

Marine 48B chain: 76.2 mm pitch, 47.63 mm roller diameter, 45.72 mm inner width, 23.81 mm pin, 400.3 kN tensile strength
Marine 56B chain: 88.9 mm pitch, 53.98 mm roller diameter, 53.34 mm inner width, 26.99 mm pin, 542.7 kN tensile strength
Marine 64B chain: 101.6 mm pitch, 63.50 mm roller diameter, 60.96 mm inner width, 30.18 mm pin, 711.7 kN tensile strength
Marine 72B chain: 114.3 mm pitch, 72.39 mm roller diameter, 68.58 mm inner width, 34.93 mm pin, 898.5 kN tensile strength

CHOHO Double-Fastener Rigid Push-Chain Lifting Platforms (RCL) & Linear Push Devices

Shanghai CHOHO Robot Co., Ltd. manufactures vertical lifting platforms and horizontal push-pull actuators utilizing double-fastener rigid chains whose links interlock like a zipper to form a rigid structural column capable of transmitting both tension and compression.

Standard rigid push-chain lifting platforms: models RCL0300H10T and RCL2000M08T for automotive skids and AGV lifters
Travel and lifting speeds up to 1000 mm/s with millimeter-level stroke repeatability and mechanical self-locking safety
Compact coiled storage in the base housing eliminates deep foundation pits and hydraulic oil leakage risks
Vertical and horizontal rigid chain push devices for automotive body shops, stage lifts, heavy die changers and nuclear handling

CHOHO Hand Chain-Driven Robotic Dexterous Hand (17 DOF) & Industrial Sprockets

Leveraging its precision micro-chain technology, CHOHO developed the CHOHO Hand anthropomorphic robotic dexterous hand driven by miniature chains and sprockets, while also manufacturing full-range industrial sprockets for A and B series roller chains.

CHOHO Hand kinematics: 17 degrees of freedom (7 active + 10 passive: 5 DOF on the thumb and 3 DOF on each of the four fingers)
Payload & precision: ±0.1 mm fingertip repeatability, 15 kg+ single-finger load capacity, and 40 kg+ whole-hand grasping payload
Over 2,000,000 operating cycles service life with 95–98% micro-sprocket & chain transmission efficiency
Complete line of CHOHO A-series, B-series and double-single industrial sprockets with induction-hardened teeth

CHOHO Industrial Chain Division & Shanghai CHOHO Robot Co., Ltd. overview

Operating within Qingdao Choho Industrial Co., Ltd.

(SZSE Stock Code: 003033) together with Shanghai CHOHO Robot Co., Ltd., the CHOHO Industrial Chain Division engineers and manufactures precision roller drive chains, conveyor and accumulation chains, forklift leaf chains, heavy bucket elevator chains, MAN-certified marine diesel chains, rigid

push-chain platforms and robotic dexterous hands.

Production across CHOHO's 10 plants in China and Thailand integrates fine blanking, cold extrusion of seamless bushings and rollers, controlled-atmosphere heat treatment, shot peening and factory pre-loading, verified in a CNAS-accredited laboratory.

To request a quotation, specify the ISO/ANSI or CHOHO chain code (08A–48B, 80T–240HT-3, 40-SL–160SL-3, C08B–C32B, BS25/BS30, LH/LL, NE/NSE, ZYP, Marine 48B–72B or RCL model), pitch, strand count, attachment code and required length.

ISO/ANSI A & B roller chains, heavy-duty T/HT/HS chains and self-lubricating SL/RO series

Standard short-pitch precision drive roller chains cover ANSI A-series and ISO/DIN B-series in 1 to 4 strands: simplex from 08A-1 (12.7 mm pitch, 13.9 kN) and 06B-1 (9.525 mm, 8.9 kN) to 48A-1 (76.2 mm, 556 kN) and 48B-1 (500 kN); duplex up to 48A-2 (1112 kN) and 48B-2 (1000 kN); triplex up to 36A-3

(843 kN) and 32B-3 (670 kN); and quadruplex up to 24B-4 (640 kN).

Heavy-duty T and HT series feature thickened link plates and through-hardened pins: T series spans 80T-1 (74.2 kN) to triplex 240T-3 (1920 kN), while HT series reaches 2300 kN ultimate tensile strength on triplex 240HT-3 (76.2 mm pitch).

For lubrication-free operation in packaging, printing, woodworking and food machinery, SL and RO self-lubricating chains use oil-impregnated sintered bushings across sizes 40-SL-1 (14.1 kN) to 160SL-3 (669 kN) and 120-RO (157 kN).

Conveyor chains, BS double-speed accumulation chains and LH/LL forklift leaf chains

Conveyor solutions include C08A-1 to C32A-3 and C08B-1 to C32B-3 straight-sideplate chains (up to 670 kN), BS25-C206B, BS30-C206B and BS30-C216A double-speed pallet accumulation chains (19.05–50.8 mm pitch, 7.0–55.6 kN), hollow-pin chains, double-pitch chains, sharp-top timber chains, side-bow

chains and rubber-top chains.

Forklift and hoisting leaf chains cover heavy-duty LH (BL) series from LH2022 (31.75 mm pitch, 2×2 lacing, 115.6 kN) through LH2044 (231.2 kN), LH2444 (338 kN) and LH2844 (462.6 kN) up to LH3266 (50.8 mm pitch, 6×6 lacing, 867.4 kN), alongside light-duty LL (AL) series from LL8022 (18 kN) to LL3266

(780 kN).

Cement bucket elevator chains (NE/NSE), palm oil chains (ZYP) and MAN marine diesel chains

Heavy engineering chains include NE bucket elevator chains from NE15-101.6 (100 kN) to NE500-350 (350 mm pitch, 1200 kN), high-speed NSE elevator chains from NSE100-150 (330 kN) to NSE800-175 (175 mm pitch, 1500 kN), ZYP palm oil mill chains (ZYP101.6V1, ZYP152.4V1 at 100 kN, ZYP152.4V2 at 220 kN,

ZYP152.4V3 at 450 kN), plus sugar mill, automotive welding line and glove dipping chains.

CHOHO is the sole domestic Chinese manufacturer certified by MAN Energy Solutions for low-speed two-stroke marine diesel engine roller chains: Marine 48B (76.2 mm pitch, 400.3 kN), 56B (88.9 mm, 542.7 kN), 64B (101.6 mm, 711.7 kN) and 72B (114.3 mm, 898.5 kN).

Rigid push-chain lifting platforms (RCL) and CHOHO Hand 17-DOF robotic dexterous hand

Shanghai CHOHO Robot Co., Ltd. supplies double-fastener rigid push-chain lifting platforms (RCL0300H10T, RCL2000M08T) and vertical/horizontal push actuators achieving speeds up to 1000 mm/s and millimeter-level positioning without deep foundation pits.

The CHOHO Hand robotic dexterous hand utilizes miniature chain and sprocket drives (95–98% efficiency) across 17 degrees of freedom (7 active + 10 passive: 5 DOF thumb + 3 DOF per finger), delivering ±0.1 mm fingertip repeatability, 15 kg+ single-finger load, 40 kg+ whole-hand payload and >2 million

cycles.

Global B2B delivery of CHOHO industrial chains, sprockets and intelligent actuators

We supply CHOHO industrial roller, conveyor, leaf, engineering and MAN marine chains together with matched industrial sprockets and RCL rigid push-chain actuators worldwide.

Send us your chain model, engineering drawing or operating parameters to receive a tailored commercial offer.

Lead times, minimum order quantities and pricing for CHOHO Industrial Chain products are calculated individually upon commercial request; public price lists are not published by the manufacturer.

We operate as an independent B2B supplier, not an authorized distributor of Qingdao Choho Industrial Co., Ltd.