QPK Single-Point Fast Hoist Winch
Product Introduction
The QPK series quick-closing single-point hoist is a hydraulic engineering machine designed for the opening and closing of planar quick-closing emergency gates. Main models range from QPK-50/50-8/13 to QPK-1x1600KN, featuring a single-point winch structure. Its transmission sequence closely resembles that of the QP series winch hoist, with the key difference being a speed governor mounted on the high-speed end of the reducer, enabling rapid emergency gate closure. For the same specification, the external mounting dimensions match those of the QP series, as do the wire rope specifications, pulley block ratios, and open gear ratios.
The QPK series quick-lifting single-point hoist operates on a three-phase AC 380V-50Hz power supply and is equipped with an manual/electric dual-purpose operating mechanism. It is suitable for the opening and closing of planar quick-closing emergency gates in water conservancy and hydropower projects, as well as flood control and drainage systems. In emergency situations, the speed governor controls the rapid closure of the gate to cut off water flow.
Product Images
Product Features
Rapid Gate Closure with Speed Governor Control: A dedicated speed governor is fitted on the high-speed end of the reducer, allowing the gate to be closed quickly under emergency conditions to meet the rapid water cut-off requirements for emergency gates.
High Interchangeability with QP Series: For the same specification, the external mounting dimensions are identical to those of the QP series winch hoist, as are the wire rope specifications, pulley block ratios, and open gear ratios, ensuring excellent interchangeability of spare parts.
Dual Manual/Electric Operation, Safe and Reliable: The electric dual-purpose operating mechanism allows normal electric operation, with manual operation available during power outages or malfunctions. The brake engages automatically upon power loss, ensuring the gate stops reliably.
Wide Load Range: Available in multiple specifications from 50KN (approx. 5t) to 1600KN (approx. 160t), built for durability and suitable for water conservancy projects of varying scales.
Product Specifications
- Product Name: QPK series quick-lifting single-point hoist
- Also Known As: Gate lifting hoist, gate crane
- Model/Specification: QPK series
- Category: Hydraulic engineering machinery
- Place of Origin: Changyuan, Xinxiang, Henan
- Manufacturer/Brand: Hongqi
- Custom Manufacturing: Available upon request
- Power Supply: Three-phase AC 380V-50Hz
- Stock Availability: Made to order
- Production Lead Time: 10~20 days
- Supply Scope: Nationwide
- Delivery Method: Customer pickup or freight arranged
- Installation: Available upon separate agreement
- After-Sales Service: One-year warranty
Working Principle
The QPK series single-point quick-lifting hoist operates on the principle of a winch combined with a speed governor and wire rope. The motor drives the gearbox, which rotates the drum. The drum winds the wire rope, which connects to the gate lifting point through a pulley block, enabling the gate to be raised and lowered. The speed governor, connected to the high-speed end of the reducer, controls the lowering speed of the gate during rapid closure to prevent excessive impact on the sill.
During normal operation, the motor drives the drum via the gearbox to reel in or pay out the wire rope, raising or lowering the gate at a steady speed. For emergency closure, the motor rotates forward to release the brake, and the gate descends rapidly under its own dead weight and water pressure, with the speed governor keeping the lowering speed within a safe range. The brake engages automatically upon power loss, ensuring the gate stops reliably at any position. The manual operating mechanism allows the gearbox to be driven by a hand crank when no power supply is available.
Structural Composition
It consists of the following core components:
Frame & Base: A welded structural frame that carries all transmission components, secured to the pier with anchor bolts.
Hoisting Mechanism: A single drum winds the wire rope, which connects to the gate lifting point via a pulley block. The drum diameter and rope capacity are designed based on the hoisting force.
Deceleration & Transmission System: Motor → gearbox → drum. The gearbox reduces speed and increases torque. A speed controller is fitted on the high-speed end to regulate speed during rapid gate closure.
Speed Controller: The key differentiator between the QPK and QP models. This device, mounted on the high-speed end of the gearbox, keeps the gate lowering speed within a safe range during crash back operation.
Brake & Electrical Control: Shoe brake applies automatically upon power failure. A 380V three-phase power supply control cabinet provides limit and overload protection.
Product Structure Diagram
Structural Schematic
QPK1×50KN-QPK1×250KN Hoist Dimensional Data
| Hoist Model | A | B | E | F | H | H1 | I | J | K | a | b |
| QPK-50/50-8/13 | 1040 | 550 | 805 | 925 | 200 | 170 | 740 | 1543 | 1416 | 1196 | 790 |
| QPK-100/100-8/13 | 1132 | 596 | 890 | 1000 | 275 | 200 | 740 | 1667 | 1458 | 1320 | 882 |
| QPK-160/160-8/13 | 1308 | 691 | 1070 | 1200 | 360 | 250 | 1036 | 1929 | 1578 | 1569 | 1208 |
| QPK-250/250-8/13 | 1520 | 800.5 | 1200 | 1300 | 390 | 265 | 1050 | 1960 | 1593 | 1730 | 1240 |
QPK1×50KN-QPK1×250KN Single-Point Drum Hoist Foundation Layout Key Dimensions
| Hoist Model | A1 | B1 | C1 | E1 | F1 | G1 | I1 | J1 | M | N | Bolt Position load-bearing(t) | Anchor Bolt | Q1 | Q2 | Q3 |
| QPK-50/50-8/13 | 1040 | 550 | 125 | 790 | 1196 | 30 | 740 | 1256 | 750 | 550 | 1.73 | 1.62 | 1.99 | 1.81 | 4-M20x400 |
| QPK-100/100-8/13 | 1132 | 596 | 125 | 882 | 1320 | 30 | 740 | 1380 | 700 | 550 | 2.83 | 2.51 | 3.24 | 2.86 | 4-M20x400 |
| QPK-160/160-8/13 | 1308 | 691 | 50 | 1208 | 1569 | 100 | 1036 | 1769 | 800 | 700 | 4.28 | 3.88 | 5.92 | 5.33 | 4-M24x500 |
| QPK-250/250-8/13 | 1520 | 800.5 | 140 | 1240 | 1730 | 35 | 1050 | 1800 | 900 | 700 | 6.53 | 6.0 | 9.22 | 8.4 | 4-M24x500 |
QPK1×50KN-QPK1×250KN Wire Rope Single Hoist Point Hoist Technical Specification & Parameter Table
| Hoist Model | drum diameter(mm) | Electric Motor | Reducer / Gearbox | Brake | Speed control device | Holding Force(KN)Lifting Force (Gate Hoist)(KN) | Fast Closing Height(m)Lifting Height (Gate)(m) | Rapid Gate Closing Speed(m/min)Gate Opening Speed(m/min) | Model | Power(Kw) | Rotational speed(r/min) | Model | Speed Ratio | Model |
| QPK-50/50-8/13 | 300 | YZ132M1-6 | 2.2 | 935 | ZQ-25 | 40.17 | YWZ-200/25 | 200 | LT-150 | 8 | 2300 | 50/50 | 8/13 | 3.4/1.37 |
| QPK-100/100-8/13 | 300 | YZ132M2-6 | 3.7 | 912 | ZQ-35 | 40.17 | YWZ-200/25 | 200 | LT-150 | 8 | 1800 | 100/100 | 8/13 | 4.0/2.17 |
| QPK-160/160-8/13 | 400 | YZ160M2-6 | 7.5 | 948 | ZQ-40 | 48.57 | YWZ-300/25 | 320 | LT-150 | 8 | 1800 | 160/160 | 8/13 | 4.2/2.40 |
| QPK-250/250-8/13 | 500 | YZ160L-8 | 7.5 | 705 | ZHQ400 | 50.94 | YWZ-300/25 | 320 | LT-200 | 20 | 1500 | 250/250 | 8/13 | 4.5/2.12 |
Structural Diagram
QPK1×400KN-QPK1×1250KN Single-Hook Hoist Outline Dimensions
| Hoist Model | A | C | I | G | K | H | H1 | E | F | J | a | b |
| QPK-400/400-8/13 | 962 | 859 | 1020 | 630 | 1175 | 520 | 315 | 1380 | 1400 | 2213 | 155 | 45 |
| QPK-630/300-8/15 | 1318 | 1210 | 1272.5 | 627.5 | 1430 | 620 | 315 | 1627 | 2200 | 2469 | 157.5 | 50 |
| QPK-800/400-9/16 | 1279.5 | 1140.5 | 1360 | 595 | 1550 | 620 | 315 | 1677 | 2400 | 2589 | 190 | 60 |
| QPK-1000/500-9/16 | 1457 | 1318 | 1395 | 615 | 1585 | 820 | 315 | 1875 | 2600 | 2623 | 190 | 60 |
| QPK-1250/630-9/16 | 1591 | 1464 | 1595 | 625 | 1785 | 820 | 315 | 1965 | 2800 | 2824 | 190 | 50 |
QPK1×400KN-QPK1×1250KN Single-Point Winch Hoist Foundation Layout Key Dimensions
| Hoist Model | A1 | B1 | C1 | E1 | F1 | G1 | I1 | J1 | M | N | bolt | Bolt position load-bearing(t) | Anchor Bolt | Q1 | Q2 |
| QPK-400/400-8/13 | 1911 | 904 | 45 | 1821 | 1650 | 155 | 1175 | 1960 | 1300 | 1000 | 10.25 | 11.35 | 17.27 | 15.53 | 4-M30x630 |
| QPK-630/300-8/15 | 2628 | 1260 | 50 | 2528 | 1900 | 157.5 | 1430 | 2215 | 2000 | 1000 | 12.9 | 13.8 | 24.9 | 23.1 | 4-M30x630 |
| QPK-800/400-9/16 | 2540 | 1200.5 | 60 | 2420 | 1955 | 190 | 1550 | 2335 | 1700 | 1000 | 15.43 | 17.23 | 33.32 | 27.7 | 4-M30x630 |
| QPK-1000/500-9/16 | 2895 | 1378 | 60 | 2775 | 2010 | 190 | 1585 | 2390 | 2000 | 1200 | 19.58 | 21.38 | 41.37 | 37.57 | 4-M30x630 |
| QPK-1250/630-9/16 | 3155 | 1514 | 50 | 3055 | 2220 | 190 | 1785 | 2600 | 2300 | 1100 | 23.15 | 24.73 | 52.92 | 48.85 | 4-M30x630 |
QPK1×400KN-QPK1×1250KN Winch-Type Single-Point Hoist Technical Specifications & Parameters
| Hoist Model | drum diameter(mm) | Electric Motor | Reducer / Gearbox | Brake | Speed controldevice | Holding Force(KN)Lifting Force (Gate Hoist)(KN) | Fast Closing Height(m)Lifting Height (Gate)(m) | Rapid Gate Closing Start Button(m/min)Gate Opening Start Button(m/min) | Model | Power(Kw) | Rotational speed(r/min) | Model | Speed Ratio | Model |
| QPK-400/400-8/13 | 600 | YZ200L-8 | 15 | 710 | Z2G-50 | 50.94 | YWZ-300/45 | 630 | LT-200 | 20 | 1800 | 400/400 | 8/13 | 3.5/1.38 |
| QPK-630/300-8/15 | 600 | YZ160L-8 | 11 | 953 | ZQ-50 | 31.5 | YWZ-300/45 | 630 | LT-200 | 20 | 2300 | 630/300 | 8/15 | 4.0/1.65 |
| QPK-800/400-9/16 | 800 | YZ200L-8 | 15 | 710 | Z2G-50 | 32.42 | YWZ-300/45 | 630 | LT-200 | 20 | 1800 | 800/400 | 9/16 | 4.6/2.35 |
| QPK-1000/500-9/16 | 800 | YZ225M-8 | 22 | 712 | Z2G-50 | 24.69 | YWZ-300/45 | 630 | LT-300 | 40 | 1400 | 1000/500 | 9/16 | 4.6/2.4 |
| QPK-1250/630-9/16 | 900 | YZ225M-8 | 22 | 712 | Z2G-50 | 24.69 | YWZ-300/45 | 630 | LT-300 | 40 | 1400 | 1250/630 | 9/16 | 5.0/2.6 |
Structural Diagram
QPK1×1600KN Quick-Winch Single-Lift-Point Hoist Parameter Table
| Project | Parameter |
| Rapid Closing Speed 5m/min | |
| Lifting Speed | 2.15m/min |
| Lift Height | 10m(13m) |
| drum diameter Φ1100mm | |
| Wire Rope Model | 6W(19)-38-170-special-bare-Right-hand lay |
| motion Pulley Block Ratio 6 | |
| open gear | m=22 i=81/18=4.5 |
| Electric Motor | YZ250M1-8 30KW 694 rpm |
| Reducer / Gearbox | Z2G-65 i=41.34 |
| Brake | YWZ-3300/45 2x630 N.m |
| Speed controldevice | LT-350 |
| Torque | 60Kg.m Rotational speed:1600r.pm |
| Weight | 17.9t |
Manufacturer Services
Henan Kelude Heavy Industry Co., Ltd. provides end-to-end services for the QPK series single-lift-point rapid winch hoist, covering manufacturing, installation, and after-sales support.
Quality Inspection: Each unit undergoes a static test with rated load at 1.25 times the rated load, speed controller functional testing, and brake reliability testing prior to shipment.
After-Sales Warranty: Full machine warranty for 12 months, with an extended 24-month warranty on the motor and gearbox. After-sales requests are addressed within 48 hours.
Request a Quotation
Need a quotation for a QPK single-lift-point hoist?
Provide your hoisting capacity requirements, gate dimensions, and installation conditions, and we will tailor a solution for you within 2 hours.
Consultation Hotline: 13903802779
FAQ
Q: What is the difference between the QPK single-lift-point and QPK double-lift-point hoists?
A: The single-lift-point model (3106) uses one drum and one lift point, making it suitable for narrow planar emergency gates. The double-lift-point model (3100) uses two drums and two lift points connected by a synchronous shaft, making it suitable for wider gates. At the same hoisting capacity, the single-lift-point design is simpler and more cost-effective, while the double-lift-point design distributes the load more evenly across the gate, making it ideal for wide gates.
Q: What is the difference between the QPK and QP series hoists?
A: The QPK is built on the QP winch-type hoist platform but adds a speed controller on the high-speed end of the gearbox, enabling rapid gate closing. Both models share the same external mounting dimensions, wire rope specifications, pulley ratios, and open gear ratios for a given size. The QPK differs only by the addition of the speed controller; all other structures are identical.
Q: What is the function of the speed controller?
A: The speed controller is mounted on the high-speed end of the gearbox and regulates the gate lowering speed during emergency closing. When the gate descends rapidly under its own dead weight and water pressure, the speed controller generates damping force through centrifugal or hydraulic principles, preventing the gate from slamming into the sill and causing damage. The speed controller remains inactive during normal opening and closing operations.
Q: Can the rapid closing speed be adjusted?
A: Yes. The maximum closing speed can be preset at the factory based on project requirements, typically adjustable within the range of 1 to 2 m/min. On-site, the speed controller parameters can be fine-tuned according to gate weight, head height, and specific project conditions.
Q: How is the hoist installed and fixed in hydraulic engineering applications?
A: The hoist frame is secured to the machine bridge or platform atop the gate pier using anchor bolts. Prior to installation, a concrete foundation must be poured with embedded anchor bolts, with foundation dimensions following the base layout drawing corresponding to the specific model. After installation, the frame levelness is calibrated, and after connecting the wire rope and gate lift points, both no-load and loaded test runs are performed.
