
INIhoists & trolleys, gearboxes from China
INI Hydraulic Co., Ltd.
Chinese manufacturer of hydraulic winches, planetary gearboxes, travel drives, slewing mechanisms and hydraulic motors. Over 26 years in the market, one of Asia's largest producers of hydraulics for off-highway machinery.
Hoists & Trolleys

Hydraulic Winches
INI's main hydraulic winch line: valve block with brake function and counterbalance valve, high-speed axial piston or low-speed radial piston motor (INM05–INM7), Z-type brake, KC/GC or IGC-W planetary gearbox, drum, frame and clutch. The user supplies only a power pack and directional valve. Sizes from IYJ2.5A to IYJ488: line pull on 1st layer 5–550 kN, rope 8–52 mm, rope speed from 60 m/min (5 kN) to 10 m/min (550 kN), pressure differential 13–29.3 MPa, flow 30–480 L/min. Options: rope guider, pressure roller, last-three-wraps alarm, speed sensor shaft. Not designed for lifting personnel.
- Sizes
- IYJ2.5A – IYJ488 (by planetary gearbox module)
- Line pull (1st layer)
- 5–550 kN (max. — IYJ79-550)
- Rope speed (1st layer)
- 60 m/min (5 kN) … 10 m/min (550 kN)
- Rope diameter
- 8–52 mm
- Pressure differential
- 13–29.3 MPa
- Oil flow
- 30–480 L/min
- Hydraulic motor
- radial piston INM05–INM7 or axial piston A2FE
- Brake / gearbox
- Z-type multi-disc / planetary KC, GC, IGC-W

Compact Hydraulic Winches
IYJ-N compact winches with the power unit built into the drum: gerotor or axial piston motor with distributor, Z-type multi-disc brake and C or KC planetary gearbox sit inside the drum, protected from contamination. Standard range IYJ11-N … IYJ33-N: line pull 3–60 kN, rope speed up to 50 m/min under load and up to 90 m/min light-load (two-speed NB versions), pressure 8–30 MPa, flow 6–124 L/min, rope 5–14 mm, drum capacity 28–126 m. IYJ45-…-ZPN recovery winches (90–120 kN) for rescue boats have been DNV-certified since 2015.
- Sizes
- IYJ11-N, IYJ22-N, IYJ2.52.5-N, IYJ33-N; IYJ45-…-ZPN
- Line pull (1st layer)
- 3–60 kN; IYJ45-ZPN — 90–120 kN
- Rope speed
- up to 50 m/min (load), up to 90 m/min (light load)
- Working pressure
- 8–30 MPa
- Oil flow
- 6–124 L/min
- Rope diameter
- 5–14 mm (IYJ45-ZPN — 24–28 mm)
- Drum capacity
- 28–126 m
- Built-in units
- motor, Z-type brake, C/KC gearbox inside the drum

Electric Winches
IDJ electric winches: brake motor, multi-stage planetary gearbox, drum and frame; the customer adds only the control cabinet. Range IDJ23 to IDJ699: line pull on 1st layer 10–600 kN, rope 14–50 mm, rope speed up to 58 m/min, motor power from 3.7 kW to 2 × 350 kW, supply 380 V 50 Hz, 660/1,140 V or 440 V 60 Hz. The 600 kN version (IDJ699-600-1000-44, ratio 88.3) was built for a 1,600 t floating dock in the Netherlands; a 150 kN winch for seafloor oil exploration is IP56, insulation class F, duty S1. SDS supplied IDJ477-250-10-42 (250 kN, 42 mm rope) with a built-in IGT160W4 gearbox.
- Sizes
- IDJ23 – IDJ699 (by planetary gearbox module)
- Line pull (1st layer)
- 10–600 kN
- Rope speed (1st layer)
- up to 58 m/min
- Rope diameter
- 14–50 mm
- Motor power
- 3.7 kW … 2 × 350 kW
- Supply voltage
- 380 V 50 Hz; 660/1,140 V; 440 V 60 Hz
- Offshore version
- IP56, insulation F, duty S1 (150 kN winch)

Free Fall Winches
IYJ-L hydraulic winches with free-fall function: planetary gearbox, hydraulic motor, wet multi-disc brake, valve blocks (counterbalance and shuttle valves), drum, frame and a hydraulically controlled clutch (INI patent) on the last gearbox stage that disengages the drum from the drive. A two-speed variable motor gives two speeds; an axial piston motor raises pressure and power. Line pull 6–225 kN, rope speed up to 90 m/min, rope 8–32 mm, system pressure 10–30 MPa, clutch opening pressure 5–8.5 MPa. Also part of INI's marine programme (Marine Machinery catalogue).
- Line pull (1st layer)
- 6–225 kN
- Rope speed (1st layer)
- up to 90 m/min
- Rope diameter
- 8–32 mm
- System pressure
- 10–30 MPa (code H1–H6: 10–35 MPa)
- Clutch opening pressure
- 5–8.5 MPa
- Free fall
- hydraulic clutch on the last gearbox stage
- Brake
- wet multi-disc; band brake optional

Friction Winches
IMYJ hydraulic friction winches: a set of a twin-drum traction winch and a storage winch, used with pulleys and a rope guide. Designed for large rope storage and constant line pull; fitted with INI single- or two-speed motors, with an optional in-house power pack. Four base versions: 65 kN / 120 m / 16 mm rope, 200 kN / 1,000 m / 22 mm, 300 kN / 900 m / 27 mm and 1,500 kN / 400 m / 63 mm. IMYJ466-300: rope speed 0–15 m/min, 15 layers on the storage drum, 26 MPa, 95,000 N·m on the twin drums.
- Versions
- IMYJ33-65, IMYJ466-200, IMYJ466-300, IMYJ61111-1500
- Line pull
- 65–1,500 kN
- Storage capacity
- 120–1,000 m
- Rope diameter
- 16–63 mm
- Rope speed (IMYJ466-300)
- 0–15 m/min
- System pressure (IMYJ466-300)
- 26 MPa
- Configuration
- twin-drum friction winch + storage winch

Mooring Winches
IYJ-C hydraulic mooring winches: valve block with brake and overload protection, hydraulic motor, enclosed planetary gearbox, band brake, dog clutch, drum, warping head and frame. An enclosed gearbox instead of open gearing and rolling instead of plain bearings raise efficiency by 6–10 % and remove daily lubrication. Comply with GB 4446-84; a constant-tension valve block adds CT function. Standard range IYJ45-C … IYJ79-C: drum load 50–400 kN, holding load 150–1,080 kN, speed 10–15 m/min (light line 20–30 m/min, creep 0.5 m/min), rope 20–50 mm; special versions up to 750 kN.
- Sizes
- IYJ45-C, IYJ56-C, IYJ67-C, IYJ79-C; special up to IYJ4611-C
- Drum load
- 50–400 kN (special up to 750 kN)
- Holding load
- 150–1,080 kN
- Rope speed
- 10–15 m/min; light line 20–30 m/min; creep 0.5 m/min
- Rope diameter / capacity
- 20–50 mm / 250–400 m
- Rated pressure / flow
- 14.5–17 MPa / 69–370 L/min
- Brake / clutch
- band brake / dog clutch; warping head
- Standard
- GB 4446-84

Vehicle Recovery Winches
ISYJ winches for special vehicles (INI patent): distributors with shuttle valves controlling the brake, single or dual counterbalance valves, INM radial piston motor, Z-type brake, C-type planetary gearbox, drum and frame; the vehicle supplies only hydraulic power and a directional valve. With the clutch lever pulled out the drum rotates freely for fast rope pay-out. Range ISYJ2.5 … ISYJ45: line pull 10–300 kN, rope speed 0–12…0–6 m/min, rope 8–28 mm, pressure differential 15–21 MPa; ISYJ67 versions — 400–500 kN, rope 33–36 mm. Used to recover stuck vehicles and for self-recovery.
- Sizes
- ISYJ2.5, ISYJ2.54, ISYJ45, ISYJ67
- Line pull (1st layer)
- 10–300 kN; ISYJ67 — 400–500 kN
- Rope speed
- 0–12 … 0–6 m/min
- Rope diameter
- 8–36 mm
- Pressure differential
- 15–21 MPa
- Oil flow
- 12–330 L/min
- Motor / brake / gearbox
- INM / Z-type / C-type planetary
- Free spooling
- clutch with hand lever

Hydraulic Capstans
IYJP hydraulic capstans — an INI patent: valve block with brake and overload protection, hydraulic motor, planetary gearbox, wet brake, capstan head and frame. The integrated valve block simplifies the ship's hydraulic system. Range IYJP3-10 … IYJP79-260: pull 10–260 kN, nominal speed 10–25 m/min, rope 13–36 mm, working pressure differential 12–14.5 MPa, total displacement 860–46,794 cc/rev, flow 25–229 L/min; INM1–INM6 radial piston motors, C3 … C79 gearboxes. IDJP electric capstans are available for vessels without hydraulics.
- Versions
- IYJP3-10 … IYJP79-260
- Pull
- 10–260 kN
- Nominal speed
- 10–25 m/min
- Rope diameter
- 13–36 mm
- Working pressure differential
- 12–14.5 MPa
- Oil flow
- 25–229 L/min (IYJP3-10 … IYJP79-240)
- Motor / gearbox
- INM1–INM6 / planetary C3AC (i = 5) … C79 (i = 22)
- Brake
- wet multi-disc

Anchor Winches
IYM hydraulic anchor winches (windlasses): valve block with brake and overload protection, hydraulic motor, planetary gearbox, hydraulic or manual band brake and dog clutch, frame. The integrated valve block simplifies the ship's hydraulics and gives smooth heaving and lowering. 10 versions for anchor chain 16–42 mm: working load 10.9–75 kN, overload pull 16.4–112.5 kN, holding load from 67 to 442 kN, heaving speed at least 9 m/min, anchorage depth up to 82.5 m, pressure 14–16 MPa, flow 14–83 L/min. The designation gives gearbox module and chain size.
- Versions
- 10 (IYM2.5-Ø16 … IYM6-Ø42)
- Anchor chain diameter
- 16–42 mm
- Working load
- 10.9–75 kN
- Overload pull
- 16.4–112.5 kN
- Holding load
- ≥ 67 … ≥ 442 kN
- Heaving speed / anchorage depth
- ≥ 9 m/min / ≤ 82.5 m
- Pressure / flow
- 14–16 MPa / 14–83 L/min
- Brake and clutch
- band brake, dog clutch (hydraulic or manual)
Gearboxes

Hydrostatic Planetary Drives
IGC-T planetary gearboxes for hydrostatic travel drives: 17 versions (15 torque sizes) from IGC9T2 to IGC880T3, maximum output torque 9–880 kN·m, 2–4 stages, ratios 16.3–421.7. Input flange for an axial piston motor (A2FE, A6VE, A6VM, A2FM, A4VM) and a wet multi-disc parking brake (250–3,200 N·m, release pressure 1.8–5 MPa). The drive mounts directly into a wheel or crawler track, or into cutter heads of milling machines and roadheaders. Used by SANY, XCMG and ZOOMLION and exported to Southeast Asia, India, South Korea, the Netherlands, Germany and Russia.
- Versions
- 17 (IGC9T2 – IGC880T3), 15 torque sizes
- Max. output torque
- 9,000–880,000 N·m
- Ratios
- 16.3–421.7
- Stages
- 2, 3 or 4
- Input interface
- flange for A2FE/A6VE/A6VM/A2FM/A4VM axial piston motor
- Max. input speed
- 4,000 rpm
- Parking brake
- wet multi-disc, 250–3,200 N·m, release 1.8–5 MPa
- Weight
- 49–4,350 kg

Crawler Travel Drives
IGT hydrostatic travel drives for crawler machines: built-in variable (two-speed) axial piston motor, multi-disc brake, planetary gearbox and valve block in one housing. 12 versions from IGT9T2 to IGT180T3: maximum output torque 9–180 kN·m, ratios 20.4–251, motor displacement 87.3 or 171.6 cc/rev, pressure up to 35 MPa, flow up to 150–250 L/min, speed ratio up to 1:2. The housing mounts into the track sprocket or wheel. Matched to machines of 6–110 t; supplied to SANY, XCMG, YUTONG.
- Versions
- 12 (IGT9T2 – IGT180T3)
- Max. output torque
- 9,000–180,000 N·m
- Ratios
- 20.4–251
- Hydraulic motor
- built-in axial piston, 87.3 or 171.6 cc/rev, two-speed
- Max. pressure
- 35 MPa
- Max. flow
- 150–250 L/min
- Drive weight
- 100–750 kg
- Vehicle mass
- 6–110 t

Hydraulic Slewing Drives
IYH hydraulic slewing drives developed in-house by INI: hydraulic motor with distributor, hydraulic multi-disc brake and C-type planetary gearbox with an output pinion driving the slewing ring. 7 versions (IYH22A/B/C, IYH33A/B/C/D): rated torque 1,500–12,000 N·m, speed 0–39 rpm, total displacement 2,325–6,620 cc/rev, pressure 6–16 MPa, flow 40–100 L/min; pinion module 6–10 mm. The distributor can include counterbalance, overload, shuttle and speed-control valves. Used by SANY; exported to the USA, Japan, Australia, Russia, the Netherlands and Korea.
- Versions
- 7 (IYH22A/B/C, IYH33A/B/C/D)
- Rated torque
- 1,500–12,000 N·m
- Speed
- 0–39 rpm
- Total displacement
- 2,325–6,620 cc/rev
- Pressure / flow
- 6–16 MPa / 40–100 L/min
- Gearbox
- planetary C22 (i = 22.86), C33 (i = 18.6; 33.1)
- Output pinion
- module 6–10 mm, 11–17 teeth
- Brake
- hydraulic multi-disc

Winch Planetary Gearboxes
IGC-W planetary gearboxes for winch drives: 16 versions from IGC9W2 to IGC880W3, maximum output torque 6.3–750 kN·m, 2–3 stages, ratios 16.3–302.4. The compact housing is mounted inside the cable drum; input flange for a variable or fixed displacement axial piston motor and a multi-disc holding brake of 250–3,200 N·m (static, not a service brake). ZCZ end supporting bearing units are available for the drum. Used in winches of mobile, crawler, railway, shipboard, dockside and container cranes and rotary drill rigs, including INI IYJ-C mooring winches.
- Versions
- 16 (IGC9W2 – IGC880W3), 15 torque sizes
- Max. output torque
- 6,300–750,000 N·m
- Ratios
- 16.3–302.4
- Stages
- 2 or 3
- Input interface
- flange for A2F/A2FE/A6VE/A6VM/A2FM/A4VM axial piston motor
- Max. input speed
- 4,000 rpm
- Parking brake
- multi-disc, 250–3,200 N·m, release 1.8–5 MPa
- Weight
- 49–4,350 kg

Travel Motors
Compact IGY-T hydrostatic travel drives: built-in two-speed axial piston motor, multi-disc parking brake, planetary gearbox and valve block. Maximum output torque 1,396–54,000 N·m, ratios 25.26–82, pressure 24.5–35 MPa, flow 20–250 L/min, drive weight 17–280 kg — for machines of 1–35 t. The number in the designation is the gearbox output torque in N·m. Dimensions and performance conform to Nabtesco, KYB, Nachi and Tongmyung drives, so they are used as replacements.
- Versions
- IGY1400T2 – IGY40000T2
- Max. output torque
- 1,396–54,000 N·m
- Ratios
- 25.26–82
- Hydraulic motor
- built-in axial piston, two-speed
- Max. pressure
- 24.5–35 MPa
- Max. flow
- 20–250 L/min
- Drive weight
- 17–280 kg
- Vehicle mass
- 1–35 t

Two-Speed HDD Carriage Drives
IYHG two-speed hydraulic drives: variable displacement axial piston motor, multi-stage planetary gearbox and relief valve block. Pressurising control port X switches the motor to small displacement for higher speed. The output pinion meshes with a rack and moves the power head of a horizontal directional drilling rig back and forth. 6 versions: torque 3,000–12,000 N·m at large displacement and 1,050–4,000 N·m at small, speed 26–40 / 70–90.5 rpm, ratios 20.06–38.6, pressure 25–28 MPa, weight 70–220 kg. Supplied to XCMG.
- Versions
- 6 (IYHG33A/B, IYHG34A/B/C/D)
- Output torque (large / small displacement)
- 3,000–12,000 / 1,050–4,000 N·m
- Speed
- 26–40 / 70–90.5 rpm
- Ratios
- 20.06–38.6
- Rated pressure
- 25–28 MPa
- Hydraulic motor
- variable axial piston, 51.9–87.3 / 18.27–43.1 cc/rev
- Weight
- 70–220 kg

Shaft-Output Planetary Gearboxes
IGC-J planetary gearboxes with output shaft for rotary drives: 5 sizes — IGC80J3, IGC110J3, IGC160J3, IGC220J3 and IGC550J4, maximum output torque 67–410 kN·m, 3–4 stages, ratios 77.7–645.45. Input and output rotate in the same direction. Input accepts an axial piston motor (A2FE, A2FM, A4FM, A6VM) or a radial piston motor INM2–INM7 or HMB030–HMB270; parking brake optional. Unlike IGC-T and IGC-W, which are built into a wheel or drum, torque is delivered through the output shaft; an IGC26J version (i = 5, 26.5 kN·m) was designed for an electric-motor-driven scraper bunker loader.
- Sizes
- 5 (IGC80J3, IGC110J3, IGC160J3, IGC220J3, IGC550J4)
- Max. output torque
- 67,000–410,000 N·m
- Ratios
- 77.7–645.45
- Stages
- 3 or 4
- Output
- shaft; same direction as input
- Hydraulic motors
- A2FE, A2FM, A4FM, A6VM; radial piston INM2–INM7, HMB030–HMB270
- Brake
- optional

Wheel Travel Drives
IGY-L wheel drives: built-in two-speed axial piston motor, multi-disc brake, planetary gearbox and valve block; heavy-duty bearings and bolts allow direct installation in the wheel. Five versions from IGY10000L2 to IGY17000L3: maximum output torque 10,000–17,000 N·m, ratios 42.1–94.1, output speed 30–55 rpm, flow 80 L/min, pressure 25–35 MPa, weight 120–200 kg, for machines of 8–18 t. Mounting dimensions conform to Fairfield drives; suitable for open and closed loops.
- Versions
- 5 (IGY10000L2 – IGY17000L3)
- Max. output torque
- 10,000–17,000 N·m
- Ratios
- 42.1–94.1
- Output speed
- 30–55 rpm
- Hydraulic motor
- built-in axial piston, two-speed (51.9/34; 44.4/26.6 cc/rev)
- Pressure / flow
- 25–35 MPa / 80 L/min
- Drive weight
- 120–200 kg
- Vehicle mass
- 8–18 t

High Speed Swing Gears
IWYHG high-speed slewing drives for excavators: valve block with brake function, high-speed hydraulic motor, brake and multi-stage planetary gearbox; the output gear shaft drives the slewing platform ring gear directly. 10 versions from IWYHG2.52.5 to IWYHG55: rated torque 1,000–12,000 N·m, speed up to 102 rpm, ratios 18.4–30.33, pressure 14–28 MPa, motor displacement 18.6–171.6 cc/rev, weight 50–125 kg — for 3.5–25 t excavators. They withstand hydraulic and external shock loads. Exported to Singapore, India, Korea and the Netherlands.
- Versions
- 10 (IWYHG2.52.5 – IWYHG55)
- Rated torque
- 1,000–12,000 N·m
- Speed
- up to 102 rpm
- Ratios
- 18.4–30.33
- Rated pressure
- 14–28 MPa
- Motor displacement
- 18.6–171.6 cc/rev
- Weight
- 50–125 kg
- Excavator class
- 3.5–25 t

Multi-Stage Planetary Gearboxes
IE modular multi-stage planetary gearboxes: 8 sizes by housing outer diameter 450–1,750 mm (IE450 … IE1750), each in 1–4 stage versions; maximum output torque 63–2,000 kN·m, ratios 3.83–1,239.5, input speed up to 4,000 rpm. Input for Rexroth, Danfoss, Eaton, M+S, Linde, SAM, Sauer, SAI, Dinamic Oil, Calzoni hydraulic motors or an electric motor; static brake optional. Output shaft: male/female involute or rectangular spline, keyed, or hollow for shrink disc. Designed mainly to transmit torque; radial load on the shaft is limited.
- Sizes
- 8 (IE450, IE490, IE560, IE610, IE670, IE870, IE1060, IE1750)
- Max. output torque
- 63,000–2,000,000 N·m
- Ratios
- 3.83–1,239.5
- Stages
- 1–4
- Max. input speed
- 4,000 rpm
- Drive
- Rexroth, Danfoss, Eaton, Linde, Sauer, SAI, Calzoni etc. hydraulic motors or electric motor
- Output shaft
- male/female spline, keyed, hollow for shrink disc
- Oil temperature
- up to +80 °C (ideal −15…+40 °C)

Caterpillar/Wheel Transmissions
IKY hydraulic transmissions for crawler and wheel drives: INM radial piston motor, one- or two-stage planetary gearbox and valve block with brake. The rotating housing is the output and bolts directly to the track sprocket; the short axial length allows installation inside the wheel or track. 13 versions (8 module sizes) from IKY2.5A to IKY66A: maximum output torque 1,040–80,000 N·m, ratios 3–37.5, speed up to 210 rpm, pressure 17–24 MPa, total displacement 387–25,530 cc/rev, for machines of 1–50 t.
- Versions
- 13 (IKY2.5A – IKY66A), 8 module sizes
- Max. output torque
- 1,040–80,000 N·m
- Ratios
- 3–37.5
- Speed
- up to 210 rpm
- Max. pressure
- 17–24 MPa
- Total displacement
- 387–25,530 cc/rev
- Hydraulic motor
- radial piston INM05–INM4 (74–1,316 cc/rev)
- Vehicle mass
- 1–50 t

Swing Gear Planetary Gearboxes
IGH-T swing drive planetary gearboxes: 12 versions from IGH17T2 to IGH220T3, maximum output torque 12.7–213 kN·m, 2–3 stages, ratios 24–294. Input flange for a Rexroth A2FM/A2FE, Danfoss H1C or Linde HMF axial piston motor; integrated multi-disc holding brake. Mounting flange in high (S1000) or low (S2000) position. Per the 2010 catalog, IGH dimensions and ratings conform to the Rexroth standard type, and some versions to Brevini, Nabtesco, Nachi and KYB. Used on SANY and XCMG excavators, cranes and drill rigs.
- Versions
- 12 (IGH17T2 – IGH220T3)
- Max. output torque
- 12,700–213,000 N·m
- Ratios
- 24–294
- Stages
- 2 or 3
- Input interface
- flange for Rexroth A2FM/A2FE, Danfoss H1C, Linde HMF motor
- Parking brake
- integrated multi-disc
- Mounting flange
- high (S1000) or low (S2000) position
- Weight
- 130–1,285 kg

Hydraulic Transmissions
IY hydraulic transmission drives combine an INM radial piston motor, planetary gearbox, disc brake (or none) and multi-function distributor in one unit. 12 sizes by gearbox module, IY2.5 to IY79: total displacement 430–77,660 cc/rev, rated torque 843–200,231 N·m at 16–20 MPa, speed up to 100 rpm; special IY61111 version delivers 550,000 N·m at 1 rpm. The output shaft carries high radial and axial loads; 8 shaft options (splined, cylindrical, flange, expansion sleeve). Allowable back pressure up to 10 MPa.
- Sizes
- 12 (IY2.5 – IY79) + IY61111
- Rated torque
- 843–200,231 N·m (16/20 MPa); IY61111 — 550,000 N·m
- Total displacement
- 430–77,660 cc/rev
- Speed
- 0–100 rpm
- Hydraulic motor
- radial piston INM05–INM6
- Brake
- Z-type disc brake or none
- Output shaft
- 8 options: splined, cylindrical, flange, expansion sleeve
- Back pressure / case pressure
- up to 10 MPa / up to 0.1 MPa
Hydraulics

Hydraulic Motors
INI low-speed high-torque radial piston motors. INM (INM05–INM7, Italian technology from a former JV): displacement 59–4,298 cc/rev, rated pressure 25 MPa, peak up to 45 MPa, torque 235–17,100 N·m, speed up to 1,000 rpm — the basis of INI winches and transmissions. IMB with hydrostatically balanced con-rods: 988–6,807 cc/rev, 23/29 MPa, up to 22,404 N·m, interchangeable with Staffa HMB. IMC two-speed motors switch displacement while running (IMC100…IMC325). IPM: 56–22,857 cc/rev, 16–20 MPa, up to 58,470 N·m; replace Intermot, Calzoni, Staffa and SAI motors of the same displacement.
- Type
- radial piston, low speed high torque
- Series
- INM05–INM7, IMB080–IMB400, IMC100–IMC325, IPM1–IPM12
- Displacement
- 56–22,857 cc/rev
- Rated pressure
- 16–25 MPa (160–250 bar)
- Peak pressure
- 24–45 MPa (240–450 bar)
- Rated torque
- 178–58,470 N·m
- Speed
- 0.2–1,000 rpm (by size)
- Interchangeability
- Staffa HMB (IMB); Intermot, Calzoni, Staffa, SAI (IPM)

Hydraulic Pumps
INI axial piston pumps. IAP/IAM fixed-displacement swash plate units work as pump or motor in open and closed circuits: 19 displacements 25–180 cc/rev, max. pressure 350 bar, speed 2,250–3,500 rpm, torque 139–1,003 N·m at 350 bar, weight 20–51 kg, ISO flange, DIN 5480 spline or keyed shaft. IK3V variable double pumps 63×2–180×2 cc/rev for 13–45 t excavators: rated 31.4 MPa, max. 34.3 MPa, power, pressure and flow control. I5VP2D28/36 double pump with integrated pilot gear pump for mini excavators.
- Type
- swash plate axial piston
- IAP/IAM (fixed)
- 25–180 cc/rev, 19 sizes
- Max. pressure IAP/IAM
- 350 bar
- Speed IAP/IAM
- 2,250–3,500 rpm
- Torque at 350 bar
- 139–1,003 N·m
- IK3V (variable double)
- 63×2–180×2 cc/rev, 31.4/34.3 MPa, 1,950–2,650 rpm
- Connection
- ISO flange; DIN 5480 spline or keyed shaft; NBR/FKM seals
Marine Solutions

Mooring Winches
IYJ-C hydraulic mooring winches: valve block with brake and overload protection, hydraulic motor, enclosed planetary gearbox, band brake, dog clutch, drum, warping head and frame. An enclosed gearbox instead of open gearing and rolling instead of plain bearings raise efficiency by 6–10 % and remove daily lubrication. Comply with GB 4446-84; a constant-tension valve block adds CT function. Standard range IYJ45-C … IYJ79-C: drum load 50–400 kN, holding load 150–1,080 kN, speed 10–15 m/min (light line 20–30 m/min, creep 0.5 m/min), rope 20–50 mm; special versions up to 750 kN.
- Sizes
- IYJ45-C, IYJ56-C, IYJ67-C, IYJ79-C; special up to IYJ4611-C
- Drum load
- 50–400 kN (special up to 750 kN)
- Holding load
- 150–1,080 kN
- Rope speed
- 10–15 m/min; light line 20–30 m/min; creep 0.5 m/min
- Rope diameter / capacity
- 20–50 mm / 250–400 m
- Rated pressure / flow
- 14.5–17 MPa / 69–370 L/min
- Brake / clutch
- band brake / dog clutch; warping head
- Standard
- GB 4446-84

Hydraulic Capstans
IYJP hydraulic capstans — an INI patent: valve block with brake and overload protection, hydraulic motor, planetary gearbox, wet brake, capstan head and frame. The integrated valve block simplifies the ship's hydraulic system. Range IYJP3-10 … IYJP79-260: pull 10–260 kN, nominal speed 10–25 m/min, rope 13–36 mm, working pressure differential 12–14.5 MPa, total displacement 860–46,794 cc/rev, flow 25–229 L/min; INM1–INM6 radial piston motors, C3 … C79 gearboxes. IDJP electric capstans are available for vessels without hydraulics.
- Versions
- IYJP3-10 … IYJP79-260
- Pull
- 10–260 kN
- Nominal speed
- 10–25 m/min
- Rope diameter
- 13–36 mm
- Working pressure differential
- 12–14.5 MPa
- Oil flow
- 25–229 L/min (IYJP3-10 … IYJP79-240)
- Motor / gearbox
- INM1–INM6 / planetary C3AC (i = 5) … C79 (i = 22)
- Brake
- wet multi-disc

Anchor Winches
IYM hydraulic anchor winches (windlasses): valve block with brake and overload protection, hydraulic motor, planetary gearbox, hydraulic or manual band brake and dog clutch, frame. The integrated valve block simplifies the ship's hydraulics and gives smooth heaving and lowering. 10 versions for anchor chain 16–42 mm: working load 10.9–75 kN, overload pull 16.4–112.5 kN, holding load from 67 to 442 kN, heaving speed at least 9 m/min, anchorage depth up to 82.5 m, pressure 14–16 MPa, flow 14–83 L/min. The designation gives gearbox module and chain size.
- Versions
- 10 (IYM2.5-Ø16 … IYM6-Ø42)
- Anchor chain diameter
- 16–42 mm
- Working load
- 10.9–75 kN
- Overload pull
- 16.4–112.5 kN
- Holding load
- ≥ 67 … ≥ 442 kN
- Heaving speed / anchorage depth
- ≥ 9 m/min / ≤ 82.5 m
- Pressure / flow
- 14–16 MPa / 14–83 L/min
- Brake and clutch
- band brake, dog clutch (hydraulic or manual)
FAQ — INI
What equipment does SDS supply from INI?
SDS delivers the full INI product range including hoists & trolleys, gearboxes and hydraulics. Detailed series, sizes and technical specifications are available on this page; full PDF catalogues can be downloaded from the Catalogues section.
In which industries is INI equipment used?
INI equipment is applied in marine equipment, construction machinery, mining & mineral processing and drilling and other industries. We select a specific model for your duty cycle, load profile, working environment and ambient conditions.
What is the warranty and lead time for INI?
Standard manufacturer warranty — 12 months from commissioning, no more than 18 months from shipment. Production lead time is 4–16 weeks depending on specification (the equipment is manufactured in China, Ningbo). Delivery to Russia is by road transport. Detailed terms are on the Terms of Cooperation page.
How to order INI equipment from SDS?
Send a technical request with operating parameters and requirements. Within one business day we prepare a technical-commercial proposal with firm pricing and delivery schedule. Default Incoterms — DDP (with EAEU certification and customs clearance included).
Need help with INI?
An SDS engineer will size the unit for your load and quote it — usually within one business day.