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Core Structural Features
1. 3-Stage Planetary Design:
1st stage: 4 planet gears (NiCrMo alloy, case-hardened to HRC60±2)
2nd/3rd stages: 5 planet gears each with tapered roller bearings
2. Integrated Housing: Single-piece nodular cast iron (GGG60) with machined mounting surfaces
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Specialized Winch Adaptations
Dual Brake Integration:
oPrimary: Spring-applied hydraulic release brake (EN 81-1 certified)
Secondary: Service brake with wear sensor
Shaft Configurations:
Input: SAE 11-tooth spline (ISO 14.240-1)
Output: Keyed shaft with anti-rotation flats
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Material Specifications
Gear Components:
Sun/planet gears: 17CrNiMo6 (DIN 17210)
Ring gear: 42CrMo4 with internal gear grinding
Bearing System:
Planetary bearings: FAG 232-series spherical rollers
Output bearings: SKF 240-series double-row tapered
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What are your core advantages of Winch Drive Planetary Gearboxes?
1. Exceptional Torque Density
Most Compact in Class: Three-stage planetary design achieves torque density of 300Nm/kg, saving 40% installation space compared to parallel shaft reducers
Heavy-Duty Capacity: Load-sharing planetary carrier enables single-unit operation on 2,000-ton winches (e.g., deep-sea mining systems)
2. Military-Grade Reliability
Gear Longevity: Shot-peened 17CrNiMo6 carburized gears exceed 10⁷ fatigue cycles (ISO 6336 standard)
Bearing System: Patented three-point planetary bearing support delivers 60,000-hour L10 life (validated in 24/7 mining operations)
3. Precision Motion Control
Ultra-Low Backlash: Ground gears + preload adjustment achieve ≤8 arc-min (P1 grade), enabling millimeter-level positioning
Torsional Stiffness: 18kNm/arc-min rigidity ensures <0.1° angular deviation under full load
4. Extreme Environment Adaptability
Deep-Sea Version: 3,000m waterproof design withstands 30MPa pressure (DNVGL-OS-E402 compliant)
Polar Edition: -50°C cold-start lubrication system with oil heaters
Explosion-Proof: Full ATEX/IECEx certification for Zone 1 hazardous areas
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The Drawing and Technical Parameters
Model | Output Torque Tmax Nm | Ratio | Hydraulic motor | Max.input Speed r/min | Braking Torque max. Nm | Brake Press. Mpa | Weight | |
GFT17W2 | 12500 | 25 | A2FE45 | A6VE55 | 3500 | 450 | 1.8-5 | 90 |
Model | Output Torque Tmax Nm | Ratio | Hydraulic motor | Max.input Speed r/min | Braking Torque max. Nm | Brake Press. Mpa | Weight | |
GFT17W3 | 12500 | 64 | A2FE28 | 3500 | 450 | 1.8-5 | 90 | |
A6VE28 | ||||||||
A6VE55 | ||||||||
A10VE45 | ||||||||
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Maintenance Specifications
Oil Change:
First change: 500h
Subsequent: 4000h (mineral oil) / 8000h (synthetic)
Bearing Service:
Regreasing interval: 2000h (high-temp grease)
Replacement: L10 life calculation + 20% margin
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Payment terms, Delivery and Service
Payment: 30%deposit,70% before shipment. All the payment can be negotiated, generally by T/T .
Delivery: 20-25 days after receipt of your payment.
Service: 24 hours online service, technical overseas service.
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FAQ
Q: Are your manufacturer of trading company?
A: We are manufacturers.
Q: Can you supply customized service?
A: Yes, we can customize the gearbox according to your demand and OEM is also available.
Q: Is your brand can be perfectly replaced and interchanged?
A: Yes, our models are the same as REXROTH GFT series.
Q: How's your warranty period?
A: We can give you one year after sales warranty.
Q: What's your ready time?
A: Normally our ready time is 30-60days, it is based on the models and your quantity.
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