XQV Synchronous Lifting Jack – Hydraulic Synchronous Jacking System for Heavy Lifting

Multi‑Point Synchronous Lifting with High Precision & Real‑Time Load Monitoring

Product Introduction

The XQV synchronous lifting jack is the core component of the steel strand synchronous lifting system. It is a PLC‑controlled hydraulic lifting system featuring unlimited stroke, high precision, safety, and easy operation. Multi‑unit synchronous control ensures stable lifting of large‑tonnage and large‑span components. Widely used in bridge jacking, high‑rise steel structure hoisting, water tower installation, and steel cofferdam lowering, it is the ideal solution for heavy component installation under complex conditions.

System Composition

The synchronous lifting system typically consists of:

Synchronous lifting jacks (multi‑unit): High‑strength steel strand jacks with built‑in displacement sensors.
High‑pressure hydraulic pump station: Variable frequency control for precise oil flow regulation.
PLC central control unit: Real‑time data acquisition and logic control.
High‑precision displacement & pressure sensors: Accurate feedback of lifting stroke and load.
Steel strands & distribution manifold blocks: Force transmission and synchronous distribution.

Key Features

🎯 High Synchronization Accuracy

PLC closed‑loop control ensures multi‑jack displacement error ≤±1 mm, ideal for precision positioning of large components.

📈 Unlimited Stroke Capability

The steel strand system allows unlimited lifting height by repeated clamping and unclamping, breaking the limitation of traditional jack stroke.

⚖️ Load Monitoring & Overload Protection

Real‑time monitoring of each jack’s load; automatic pressure regulation to prevent uneven lifting or overload.

🖥️ Remote Control & Data Logging

Touch‑screen interface on the pump station, with optional wireless remote control and full data recording for traceability.

🛡️ Fail‑Safe Safety Design

Integrated safety valves and emergency stop functions; automatic locking in case of power failure or hose rupture.

Synchronous Lifting Jack – Parameters Sheet

Model	Tensile Force (kN)	Oil Pressure (MPa)	Piston Area (m²)	Return Piston Area (m²)	Stroke (mm)	Beam Hole Diameter (mm)	Anchor Plate Hole Number (φ15.2 mm)	Overall Dimension (mm)	Weight (kg)
XQVS30T‑25	300	24	1.25×10⁻²	0.24×10⁻²	250	φ75	3	φ230×1550	100
XQVS60T‑25	627	24	2.6×10⁻²	1.2×10⁻²	250	φ120	7	φ290×1650	250
XQVS100T‑25	977	24	4.07×10⁻²	1.9×10⁻²	250	φ130	10	φ346×1650	400
XQVS120T‑25	1200	25	4.8×10⁻²	2.5×10⁻²	250	φ145	12	φ360×1650	500
XQVS200T‑25	2050	25	7.87×10⁻²	4.27×10⁻²	250	φ190	19	φ435×1750	750
XQVS300T‑25	2970	27	10.99×10⁻²	5.15×10⁻²	250	φ220	27	φ520×1750	1000
XQVS350T‑25	3520	27	13.02×10⁻²	8.88×10⁻²	250	φ255	27	φ560×1750	1200
XQVS120T‑30	1200	25	4.8×10⁻²	2.5×10⁻²	300	φ145	12	φ360×1900	500
XQVS200T‑30	2050	25	7.87×10⁻²	4.27×10⁻²	300	φ190	19	φ435×1900	750
XQVS300T‑30	2970	27	10.99×10⁻²	5.15×10⁻²	300	φ220	27	φ520×1900	1000

※ The parameters are for reference only. Subject to change without notice. Final interpretation right belongs to our company.

Applications

Bridge Construction: Incremental launching of steel box girders; synchronous jacking of bridge bearings for replacement or height adjustment.
High‑Rise & Large‑Span Steel Structures: Hoisting of steel roofs, large‑span trusses, and heavy steel frames.
Civil Engineering: Lowering of steel cofferdams; jacking of large‑diameter pipelines; foundation settlement correction.
Industrial Equipment Installation: Precise positioning of heavy equipment, turbine generators, and large‑scale presses.
Structural Unloading & Re‑supporting: Controlled load transfer and replacement of damaged structural supports.

Workshop

Our Manufacturing Base – Liuzhou Xuanqiao Prestressed Machinery Co., Ltd.

Located in Liuzhou, Guangxi – a key industrial hub for prestressed technology – our modern workshop covers over 10,000㎡. We operate CNC machining centers, automated assembly lines, and precision testing equipment to ensure consistent quality.

Every batch of raw material is inspected, and finished products (anchors, jacks, pumps, ducts) are tested in our in‑house laboratory for mechanical performance and pressure resistance. We are certified under ISO 9001:2015 and comply with FIP international standards.

Annual capacity: 6 million anchor holes and 1,000+ sets of hydraulic equipment. Our experienced technicians and engineers follow strict SOPs to guarantee reliability.

We maintain sufficient raw material inventory and finished goods for fast delivery. Continuous investment in equipment and training keeps us at the forefront of prestressed manufacturing – because a strong factory means reliable products and long‑term trust.