Compound-Feed Heavy-Duty Long Arm Cylinder-Bed Sewing Machine (436)

November 01 01:04:35, 2022

Model NO.: HJ-335A
Dimensions: 1100*540*1500mm
Packing Size: 1200*640*1700mm
N.W.: 85 Kg
G.W.: 95 Kg
Motor: 1/3 HP
Trademark: HJ
Transport Package: Wooden Case
Specification: CE, SGS
Origin: China
HS Code: 8501101000
HJ-335A Compound-feed heavy-duty long arm cylinder-bed sewing machine description:
  
1. Even made up together with authenticating code, feed dog, pin syntheses level feeding and several layers of skin stuff, the horu will not be left behind. 
2. The hilical gear in the sealed oil-fat case will be silent while turning, which will prolong the life of the machine, Applicable to the whipping of such thick stuff products as leather, bags, brocade weft, cancas work like auto seats, poke, shoes, tents and upholstety.

Technical parameter
Model HJ-335A
Max.Sawing speed 2500(s.P.M)
Max.Stitch length 5.5mm
Presser foot lift 10mm
Needle DPX17

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Hydraulic Engineering Percussion Drilling Rig

Percussion drilling is a manual drilling technique in which a heavy cutting or hammering bit attached to a rope or cable is lowered in the open hole or inside a temporary casing. The technique is often also referred to as 'Cable tool'. Usually a tripod is used to support the tools. By moving the rope or cable up and down, the cutting or hammering bit loosens the soil or consolidated rock in the borehole, which is then extracted later by using a bailer. Just as with hand augering, a temporary casing of steel or plastic may be used to prevent the hole from collapsing. When the permanent well screen and casing are installed, this temporary casing has to be removed.


The percussion borehole drilling rig's technical advantages:

- Unlike any other drilling method, percussion can remove boulders and break harder formations, effectively and quickly through most types of earth.
- Percussion drilling can in principle deal with most ground conditions.
- Can drill hundreds of feet (one well hand-drilled in China in 1923 was over 4000 feet deep).
- Can drill further into the water table than dug wells, even drilling past one water table to reach another.

Hydraulic Engineering Percussion Rig,Big Cable Percussion Drilling Rig,Large Diameter Construction Percussion Rig

Henan YK Prospecting Machinery Co., Ltd , https://www.yikyuirig.com