QPK Double-Point Quick Winch Hoist
Product Introduction
The QPK series quick-lifting double-suspension-point winch hoist is a water conservancy machinery equipment used for the hoisting and lowering of planar quick-closing emergency gates in water conservancy projects. The main models range from QPK-2×50/2×50-8/13 to QPK-2x1600KN, featuring a double-suspension-point winch structure. Its transmission sequence is largely similar to that of the QP winch hoist, with the key difference being a speed governor connected to the high-speed end of the reducer, which enables rapid emergency gate closure. For the same specification, the external mounting dimensions are identical to those of the QP type, as are the wire rope specifications, pulley block ratios, and open gear ratios.
The QPK series quick-lifting double-suspension-point winch hoist operates on a three-phase AC 380V-50Hz power supply and is equipped with an manual/electric dual-purpose operating mechanism. It is designed for the hoisting and lowering of planar quick-closing emergency gates in water conservancy and hydropower projects, as well as flood control and drainage systems. In crash back 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 to the high-speed end of the reducer, allowing the gate to be closed quickly in crash back situations, meeting the requirement for rapid flow cutoff in emergency gates.
High Interchangeability with QP Type: For the same specification, the external mounting dimensions are identical to those of the QP winch hoist, and the wire rope specifications, pulley block ratios, and open gear ratios are the same, ensuring excellent interchangeability of spare parts.
Dual Manual/Electric Operation, Safe and Reliable: The electric dual-purpose operating mechanism allows for normal electric operation, with manual operation available during power outages or malfunctions. The brake engages automatically upon power failure, ensuring the gate stops reliably.
Wide Load Range: Available in specifications from 50KN (approx. 5t) to 1600KN (approx. 160t), these hoists are durable and suitable for water conservancy projects of varying scales.
Product Specifications
- Product Name: QPK series quick-lifting double-suspension-point winch hoist
- Alias: Gate lifting hoist / gate crane
- Model/Specification: QPK series
- Category: Hydraulic machinery equipment
- Place of Origin: Changyuan, Xinxiang, Henan
- Brand: Hongqi
- Customization: Non-standard manufacturing available
- Power Supply: Three-phase AC 380V-50Hz
- Availability: Made to order
- Production Lead Time: 10~20 days
- Supply Scope: Nationwide
- Delivery: Customer pickup or freight arranged
- Installation: Available upon separate agreement
- After-Sales Service: One-year warranty
Working Principle
The QPK series double-suspension-point quick-lifting winch hoist operates on the principle of a winch combined with a speed governor and wire rope. The motor drives the gearbox to rotate the drum, which winds the wire rope connected via the pulley block to the gate suspension points, 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 gearbox to wind or unwind the wire rope on the drum, raising and lowering the gate at a steady speed. In a crash back, 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 failure, 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: 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 points 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 difference between the QPK and QP models. This speed control device is mounted on the high-speed end of the gearbox to keep the gate lowering speed within a safe range during emergency closure.
Brake & Electrical Control: Shoe brake applies automatically on power failure. 380V three-phase power supply control cabinet with limit protection and overload protection.
Product Structure Diagram
Structural Schematic
QPK1×50KN-QPK1×250KN Hoist — Overall Dimensions & Foundation Layout
| Hoist Model | A | B | E | F | H | H1 | I | J | K | a | b |
| QPK-2×50/2×50-8/13 | 1040 | 550 | 805 | 925 | 200 | 170 | 740 | 1543 | 1416 | 1196 | 790 |
| QPK-2×100/2×100-8/13 | 1132 | 596 | 890 | 1000 | 275 | 200 | 740 | 1667 | 1458 | 1320 | 882 |
| QPK-2×160/2×160-8/13 | 1308 | 691 | 1070 | 1200 | 360 | 250 | 1036 | 1929 | 1578 | 1569 | 1208 |
| QPK-2×250/2×250-8/13 | 1520 | 800.5 | 1200 | 1300 | 390 | 265 | 1050 | 1960 | 1593 | 1730 | 1240 |
QPK1×50KN-QPK1×250KN Double-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-2×50/2×50-8/13 | 1040 | 550 | 125 | 790 | 1196 | 30 | 740 | 1256 | 750 | 550 | 1.73 | 1.62 | 1.99 | 1.81 | 4-M20x400 |
| QPK-2×100/2×100-8/13 | 1132 | 596 | 125 | 882 | 1320 | 30 | 740 | 1380 | 700 | 550 | 2.83 | 2.51 | 3.24 | 2.86 | 4-M20x400 |
| QPK-2×160/2×160-8/13 | 1308 | 691 | 50 | 1208 | 1569 | 100 | 1036 | 1769 | 800 | 700 | 4.28 | 3.88 | 5.92 | 5.33 | 4-M24x500 |
| QPK-2×250/2×250-8/13 | 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 Double-Point Winch Hoist Technical Specifications & Parameters
| 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-2×50/2×50-8/13 | 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-2×100/2×100-8/13 | 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-2×160/2×160-8/13 | 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-2×250/2×250-8/13 | 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 Drum Hoist with Double Lifting Points — Dimensional Outline Table
| Hoist Model | A | C | I | G | K | H | H1 | E | F | J | a | b |
| QPK-2×400/2×200-8/13 | 962 | 859 | 1020 | 630 | 1175 | 520 | 315 | 1380 | 1400 | 2213 | 155 | 45 |
| QPK-2×630/2×300-8/15 | 1318 | 1210 | 1272.5 | 627.5 | 1430 | 620 | 315 | 1627 | 2200 | 2469 | 157.5 | 50 |
| QPK-2×800/2×400-8/16 | 1279.5 | 1140.5 | 1360 | 595 | 1550 | 620 | 315 | 1677 | 2400 | 2589 | 190 | 60 |
| QPK-2×1000/2×500-8/16 | 1457 | 1318 | 1395 | 615 | 1585 | 820 | 315 | 1875 | 2600 | 2623 | 190 | 60 |
| QPK-2×1250/2×630-8/16 | 1591 | 1464 | 1595 | 625 | 1785 | 820 | 315 | 1965 | 2800 | 2824 | 190 | 50 |
QPK1×400KN-QPK1×1250KN Double-Point Winch Hoist — Foundation Layout Key Dimensions
| Hoist Model | A1 | B1 | C1 | E1 | F1 | G1 | I1 | J1 | M | N | screw | Bolt position load-bearing(t) | Anchor Bolt | Q1 | Q2 |
| QPK-2×400/2×200-8/13 | 1911 | 904 | 45 | 1821 | 1650 | 155 | 1175 | 1960 | 1300 | 1000 | 10.25 | 11.35 | 17.27 | 15.53 | 4-M30x630 |
| QPK-2×630/2×300-8/15 | 2628 | 1260 | 50 | 2528 | 1900 | 157.5 | 1430 | 2215 | 2000 | 1000 | 12.9 | 13.8 | 24.9 | 23.1 | 4-M30x630 |
| QPK-2×800/2×400-8/16 | 2540 | 1200.5 | 60 | 2420 | 1955 | 190 | 1550 | 2335 | 1700 | 1000 | 15.43 | 17.23 | 33.32 | 27.7 | 4-M30x630 |
| QPK-2×1000/2×500-8/16 | 2895 | 1378 | 60 | 2775 | 2010 | 190 | 1585 | 2390 | 2000 | 1200 | 19.58 | 21.38 | 41.37 | 37.57 | 4-M30x630 |
| QPK-2×1250/2×630-8/16 | 3155 | 1514 | 50 | 3055 | 2220 | 190 | 1785 | 2600 | 2300 | 1100 | 23.15 | 24.73 | 52.92 | 48.85 | 4-M30x630 |
QPK1×400KN-QPK1×1250KN Double-Point Winch 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-2×400/2×200-8/13 | 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-2×630/2×300-8/15 | 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-2×800/2×400-8/16 | 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-2×1000/2×500-8/16 | 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-2×1250/2×630-8/16 | 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
QPK2×1600KN Fast Winch-Type Double-Hoist-Point Hoist Parameter Table
| Projects | Parameter |
| Rated Holding Force/Lifting Force (Gate Hoist) | 1600KN/800KN |
| Rapid closing speed | 5m/min |
| Lifting Speed | 2.15m/min |
| Lift Height | 10m(13m) |
| drum diameter | Φ1100m |
| Wire Rope Model | 6W(19)-38-170-features-light-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 twin-lifting-point rapid-closing winch hoists, 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 before leaving the factory.
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 twin-lifting-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 twin-lifting-point and QPK twin-lifting-point hoists?
The twin-lifting-point (3100) uses a single drum and a single lifting point, suitable for flat rapid-closure gates. The twin-lifting-point (3100) uses two drums and two lifting points connected via a synchronous shaft, suitable for wider gates. At the same hoisting capacity rating, the twin-lifting-point configuration is simpler in structure and lower in cost; the twin-lifting-point gate distributes force more evenly and is better suited for wide gates.
Q: What is the difference between the QPK and QP series hoists?
The QPK is based on the QP winch-type hoist, with a speed controller added to the high-speed end of the reducer to enable rapid gate closure. At the same specification, both share identical external mounting dimensions, wire rope specifications, pulley ratios, and open gear ratios. The QPK has one additional speed controller device compared to the QP; all other structures are identical.
Q: What is the function of the speed controller?
The speed controller is mounted on the high-speed end of the reducer and controls the gate lowering speed during emergency closure. 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 impacting the sill at excessive speed and causing damage. The speed controller remains inactive during normal hoisting operations.
Q: Can the rapid closure speed be adjusted?
Yes. The maximum closure speed can be preset at the factory based on project requirements, typically adjustable within the range of 1~2m/min. During on-site commissioning, the speed controller parameters can be fine-tuned according to gate weight, head height, and project specifications.
Q: How is the hoist installed and fixed in hydraulic engineering projects?
The hoist frame is secured to the machine bridge or platform atop the pier via anchor bolts. Prior to installation, the concrete foundation must be poured with pre-embedded anchor bolts, with foundation dimensions following the foundation layout drawing corresponding to the model. After installation, the frame levelness is calibrated, and after connecting the wire rope to the gate lifting points, no-load and loaded test runs are conducted.
