SA-YQ90 hydraulic puller
Hydraulic tensioner is key stringing equipment for overhead power transmission construction. It maintains stable and preset tension during conductor pulling to avoid conductor damage, commonly paired with hydraulic puller. Widely used for high voltage power line projects, REACH POWER as China factory provides customized tension range and reel configurations for global EPC clients.
Product Description
SA-YQ90 Hydraulic Puller
Key Specifications
| Parameter | Value |
|---|---|
| Maximum Linepull | 90 kN |
| Continuous Linepull | 80 kN |
| Maximum Linespeed | 5 km/h |
| Bullwheel Bottom of Groove Diameter | Φ520 mm |
| Bullwheel Grooves Number | 7 |
| Max. Suitable Steel Rope Diameter | Φ20 mm |
| Max. Through Connector Diameter | Φ60 mm |
| Engine Power / Speed | 121 kW / 2500 rpm |
| Dimensions (L×W×H) | 3500 × 2100 × 2500 mm |
| Weight | 4300 kg |
Features
- Infinitely variable speed and linepull control; real-time pull force displayed on gauge
- Preset maximum pull for conductor stringing with automatic overpull protection
- Spring-applied, hydraulic-release brake — engages automatically during hydraulic failure
- Hydraulic pull rope clamp for quick, convenient steel rope replacement
- Integrated reel winder with automatic level-wind function
Main Components
- Engine: Cummins (USA) water-cooled diesel engine
- Main variable displacement pump & motor: Rexroth (BOSCH)
- Reducer: Rexroth (BOSCH)
- Main hydraulic valves: Rexroth (BOSCH)
- Radiator: AKG
- Hydraulic instruments: WIKA
- Compatible drum: GSP1400 (Order No.: 07125C)
- Optional engine variant: Cummins (DONGFENG) water-cooled diesel — model YA-YQ90D, Order No.: 07042
Frequently Asked Questions
Q1: What is a hydraulic tensioner used for in power line construction?A: It applies constant back-tension on conductors during stringing to prevent slack, abrasion, and conductor jumping over obstacles such as roads, railways, and existing power lines.
Q2: What is the difference between hydraulic puller and tensioner?A: The puller provides forward pulling force; the tensioner applies controlled back-tension. Together, they form a complete puller–tensioner set for safe, precise conductor stringing.
Q3: Can you supply tensioners for 500 kV twin-bundle conductor stringing?A: Yes — our multi-reel hydraulic tensioners support single, twin, and quad-bundle conductors for EHV transmission projects.
Q4: Is your hydraulic tensioner suitable for mountain construction sites?A: Yes — compact chassis design, optional diesel power pack, and optimized transport/setup make it well-suited for mountainous terrain.
