The LB851 heavy water jet loom weaves demanding ultra-fine, blackout, and airbag fabrics at high speeds (1200 RPM) with exceptional stability. It features waterproofing upgrades and supports multiple weft/shedding devices.
The LB851 is a high-density, ultrafine heavy water jet loom engineered for demanding fabrics. It excels in weaving ultra-fine denier, ultra-high density blackout, and airbag fabrics, offering broad versatility across fabric types. Enhanced weather resistance further expands its application range.
Performance is exceptional, reaching speeds up to 1200 RPM while maintaining high efficiency and operational stability. It handles extreme densities, achieving up to 205 threads per inch (80 shuttles/cm) for fabrics like 75D.
Key mechanical innovations ensure fabric integrity and loom stability:
Short-stroke beating minimizes reed damage to delicate fabrics.
An eccentric shaft reduces beating vibration.
Increased longitudinal rack support and a 40mm lowered center of gravity enhance structural rigidity.
Reduced fabric take-up roller distance decreases springback and improves textile export stability.
A stable negative-slack warp beam tension system ensures consistent yarn control.
The LB851 offers versatile configuration:Â It supports 1-4 color crank openings or crank 6 linkage, and can be equipped with machine or electronic weft storage devices, multi-jet capabilities, and cam or dobby shedding motions.
Speed | 600-1200RPM, depending on fabric types |
Reed space | 170-420cm |
Weft density | 5-60 pcs/cm |
Shedding | Plain, cam, dobby |
Heald frame | 2-16pcs |
Let -off | Negative loose warp or  positive loose warp device Electronic let off Diameter of the beam flange:Φ800mm |
Take Up | Electronic take up Standard density 25-300 picks/inch Maximum roll cloth diameter: Φ 600mm (cam, dobby, jacquard shedding) Φ 520mm (crank shedding) |
Number of nozzle | 1-4 |
Voltage | 220V/380V/415V |
Weaving Range | Spun:Ne100~Ne2.5 Filament:22dtex~1350dtex |
Weft Selection | Two color, four color, six color and continuous expansion function |
Weft Insertion | Maximum weft insertion rate: 2280m/min Combination of main nozzle and auxiliary nozzle Profiled reed Auxiliary main nozzle |
Shedding | Crank connecting rod shedding: 4 pcs heald frame or 6 pcs heald frame Positive cam shedding:Up to 12Â pieces of heald frame Dobby shedding: up to 16pieces of heald frames Jacquard shedding |
Beating Up | “U” shaped beating up shaft Four-link beating-up (narrow width), six-link beating-up (wide width) Configure rocker shaft middle support |
Length Measurement&Weft Storage | Electronic weft feeder |
 Weft Stand | Floor type 4 barrels (2 nozzles), Floor type 8 barrels (4 nozzles), Floor type 10 barrels (6 nozzle) |
 Selvage | Planetary gear type Selvage device |
Weft Cutting | Mechanical weft cutting device |
Stop Machine Device | Weft yarn: photoelectric weft feeler, double probe Warp yarn: Electrical contact six-row dropper Others: selvage yarn, discarded edge yarn and automatic stop when the yarn is broken Stop reason: show the information on the display, multi-function 4-color light stop display |
  Automation | Inverter to adjust speed |
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Qingdao Lebon Industry Co., Ltd.All rights reserved.