LVF Inline Hoisting Mechanism for Tower Crane| Crane Winch Manufacturer & Supplier
LVF Inline Hoisting Mechanism for Tower Crane
LVF series hoisting mechanism, also known as the inline type hoisting mechanism, is designed for tower crane lifting systems. The mechanism adopts a VFD speed-control motor, NGW reducer and rope drum structure. The complete unit is arranged in a straight “inline” layout, making it compact, lightweight, low-noise and easy to install on tower cranes.
This LVF hoisting mechanism is suitable for tower cranes requiring stable lifting performance, smooth starting and braking, reliable braking safety, and long service life.
Real LVF inline hoisting mechanism for tower crane lifting system
Product Features of LVF Inline Hoisting Mechanism
The LVF series hoisting mechanism uses a variable-frequency motor, NGW reducer and drum combination. The whole structure is arranged in a straight line, which gives the mechanism the advantages of compact layout, low noise and reduced overall weight.
- Inline layout with VFD motor + NGW reducer + rope drum
- Compact structure and lighter overall machine weight
- Low operating noise, suitable for tower crane lifting systems
- Maximum lifting capacity range commonly used for 18–25 ton tower cranes
- All gears adopt hardened tooth surface for long service life
- Mechanical sealing design for the reducer, with reliable sealing performance
- Automatic compensation for seal wear, reducing leakage risk
- Electromagnetic brake system for safe and stable braking
- High braking frequency and convenient brake torque adjustment
- Easy maintenance and replacement of brake components
VFD Motor and Smooth Lifting Performance
The motor is configured with 4-pole variable frequency speed control. It provides a wide speed regulation range, strong overload capacity, high efficiency, stepless speed control and smooth starting and braking.
The LVF mechanism can realize zero-speed braking, which greatly reduces friction plate wear and significantly extends the service life of the brake friction disc.
- 4-pole VFD motor
- Wide speed control range
- High overload capacity
- High transmission efficiency
- Stepless speed control
- Smooth starting and stopping
- Zero-speed braking
- Longer friction plate service life
Model Description
The LVF model code helps buyers quickly understand the motor power, series type, rated single line pull and model version.
Example: 22-LVF-15A
| Code | Meaning |
|---|---|
| 22 | Motor rated power, 22 kW |
| LVF | LVF variable frequency hoisting mechanism |
| 15 | Single line pull, 15 kN |
| A | Upgraded model; without letter means basic model |
| I / II | With letters and brackets: upgraded non-standard mechanism; without letters and brackets: basic non-standard mechanism |
Main Performance Parameters
The following models cover common LVF inline hoisting mechanism specifications for tower crane applications.
| Model | Single Line Pull kN | Falls of Rope | Motor Rated Power kW | Frequency Range Hz | Hoisting Speed m/min | Max. Lifting Capacity t | Rope Capacity m | Wire Rope Diameter mm |
|---|---|---|---|---|---|---|---|---|
| 22LVF15A | 15 | 4 | 22 | 42–100 | 80–200 | 6 | 420 (5 layers) | 12 |
| 30LVF20D | 20 | 4 | 30 | 50–100 | 84–168 | 8 | 508 (5 layers) | 14 |
| 30LVF20A | 20 | 4 | 30 | 43–100 | 84–200 | 8 | 550 (7 layers) | 14 |
| 37LVF25D | 25 | 4 | 37 | 50–100 | 88–176 | 10 | 623 (6 layers) | 14 |
| 45LVF30D | 30 | 4 | 45 | 50–100 | 90–180 | 12 | 640 (6 layers) | 16 |
| 55LVF45 | 45 | 4 | 55 | 33–100 | 68–210 | 18 | 805 (7 layers) | 18 |
| 75LVF50 | 50 | 4 | 75 | 42–100 | 87–210 | 20 | 805 (7 layers) | 18 |
| 75LVF63A | 63 | 4 | 75 | 33–100 | 71–214 | 25 | 800 (7 layers) | 20 |
Outline Dimensions
The outline drawing below shows the main installation dimensions, rope outlet direction, oil inlet, oil drain, oil filler and breather position, positioning ear and mounting structure.
Installation Dimensions Table
The following installation dimension data can help engineers check whether the LVF hoisting mechanism matches the tower crane mounting position and installation space.
Installation Dimensions: 22LVF15A / 30LVF20A
| Model | L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | L9 | H1 | H2 | H3 | P | D1 | D2 | D3 | Weight kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 22LVF15A | 560 | 523 | 1045 | 40 | 80 | 890 | 995 | 20 | 1760 | 918 | 435 | 55 | 12.6 | 12 | 50.5 | 795 | 945 |
| 30LVF20A | 540 | 507 | 1050 | 45 | 80 | 890 | 995 | 20 | 1779 | 1065 | 510 | 55 | 14.7 | 14 | 50.5 | 935 | 1150 |
Installation Dimensions: 30LVF20D
| Model | L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | L9 | L10 | L11 | H1 | H2 | H3 | H4 | H5 | P | D1 | D2 | D3 | D4 | Weight kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30LVF20D | 768 | 728 | 86 | 1098 | 905 | 636 | 1281 | 2028.5 | 101.5 | 895 | 960 | 60 | 500 | 943 | 297 | 425 | 14.7 | 14 | 330 | 605 | 820 | 1230 |
Installation Dimensions: 37LVF25D / 45LVF30D / 55LVF45 / 75LVF50 / 75LVF63A
| Model | L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | H1 | H2 | P | D1 | D2 | D4 | Weight kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 37LVF25D | 768 | 727.64 | 1075 | 77.5 | 1160 | 1300 | 25 | 1948.5 | 1028 | 585 | 14.7 | 14 | 50.5 | 820 | 1280 |
| 45LVF30D | 892.4 | 848.4 | 1300 | 77.5 | 1160 | 1320 | 25 | 2125 | 1192.5 | 635 | 16.8 | 16 | 50.5 | 605 | 1420 |
| 55LVF45 | 858.15 | 822.15 | 1300 | 95 | 1350 | 1498 | 25 | 2228.5 | 1262 | 610 | 18.9 | 18 | 50.5 | 725 | 2185 |
| 75LVF50 | 858.15 | 822.15 | 1300 | 95 | 1350 | 1498 | 25 | 2228.5 | 1262 | 610 | 18.9 | 18 | 50.5 | 725 | 2185 |
| 75LVF63A | 900.5 | 850.5 | 1670 | 95 | 1800 | 1498 | 25 | 2587 | 1497.5 | 802.5 | 21 | 20 | 50.5 | 780 | 2800 |
Suitable Tower Crane Use
LVF inline hoisting mechanism is suitable for tower cranes that require stable lifting, smooth speed regulation, compact installation space and reliable brake performance. It can be used as a replacement hoisting mechanism or for tower crane repair, refurbishment and spare parts supply.
- Tower crane hoisting mechanism replacement
- Used tower crane refurbishment
- New tower crane spare parts supply
- Hoisting winch system matching by model and dimensions
- Customized tower crane lifting mechanism selection
Related LVF Pages
LVF Hoisting Mechanism Specifications
Small LVF Hoisting Mechanism for Tower Crane
Tower Crane Hoisting Mechanism Guide
Inquiry Information
Please send us your tower crane model, required lifting capacity, hoisting speed, wire rope diameter, drum capacity and installation dimensions. We can help check the suitable LVF hoisting mechanism model for your tower crane.
Email: [email protected]
WhatsApp: +86 13905120947
Website: atlastowercrane.com