China-Long-Arm-Single-Double-Needle-Compound-Feed-Lockstitch-Sewing-Machine-DU4420-L40-

Long Arm Single/Double Needle Compound Feed Lockstitch Sewing Machine(CE)

1.related products
DU4430-L40                                  DU4420-L40
DU4420-L25                                  DU4420-L18
DU4420L                                        DU4400L
DU4420/4400                                DA767H-2//DA767H-2-7
RB-6860                                         GC0303  
GC1510N/GC1510N-7                  GC1541S
2. Applications
Long Arm Single/Double Needle Compound Feed Lockstitch Sewing Machine  is mainly suitable for sofa,suitcase,car seats,etc
3.Product show details

4. Features
(1)Automatic thread trimmer &back tack
(2)Automatic oil pump lubrication system
(3)Large hook
(4)Advanced feed system
(5)Pneumatic reverse feeding device.
(6)CE marked.
5.Specifications
Product model Stitch Type Max Sewing Speed Feed type Stitch Length Needle system Needle bar stroke Hook Foot lift Needle gauge Working space
DU4420-L40 Lockstitch 301 1,200 Alternating top bottom&needle feed 9 135X17/DPX17  160 36 Overlock504 8/13 . 1016X110
6. Options
(1)Pneumatic foot lifter
(2)Air cleaning system
(3)Air floating table
(4)Infrared detecting puller device
(5)Waste material collector
(6)Two speed switches(high and low)foot-pedal
7. Service
1) One year guarantee.
2) Offer you introduction and professional advice.
3) Customized design is available.
4) Any problem, you can call us directly.
8.Delivery time
Generally 7-10 working days,subject to the order quantity.
9.Factory&Product


 
 
10. Superiorty
We company professionally manufacture automatic sewing machine for 20 years, with certificates of CE,SGS.And it can custom-made.
Suzhou HELA Machinery Co.Ltd. locates at Wujiang District, Jiangsu Province, near Shanghai.
We are factory with strict quality control team.
Welcome your coming !

11.Packing and Shipping



12.FAQ

1)Are you a factory or trade company? 
We are manufacturer with own factory for 20 years, export proportion 50~60%. 

2) How can i trust your company? 
A. With professional design and sales team, we can serve you the perfect solution with lowest cost. 
B. Assessed by third party, national patents for all equipment, also CE, SGS. 
C. Welcome to inspect anytime. We are near to Shanghai airport. 
D. About the machine, we do much better on: Industrial sewing machine.

3) Is your price competitive? 
Surely we will give you best factory price based on superior product and service.

 
Your inquiry will be answered within 24 hours, please feel free to contact us for more machine pictures & details.

Anything i can do for you,please kindly to let me know!
You can also contact me following down:
Lydia Hsu
Tel: +86-512-86876030
Mobile+86-15672463513
 
 

 

The special feature: The Marine steel pontoons design  are modular coupleable. That is, they are delivered as easily-handled individual Steel pontoons for dredging and can be coupled together direct on the water. In this way smaller or larger platforms can be generated very fast. By default, we can offer you the Steel Pontoon in two different sizes and thus cover a wide range of applications.

The specifications of our pontoon

A. General

High accuracy and fully welded, sealed, painted construction can be used for marine engineering of submerged and floating lines in pontoon or dock area or working platform.

B. Construction

The construction is to be built according to the drawing with rules of good workmanship and to be built the longitudinal frame system.

All penetrations of longitudinal through transverse bulkhead are closed with slot plate or stiffeners are interrupted at bulkhead and continuity is realized with brackets, to ensure to avoid any abrupt changes in strength structures.

Subdivided into some watertight compartments, and tanks are pressure tested after completion of all welding but before painting, testing pressure normally 2.35 mwg or 0.2 Bar.

C. Materials

All fabricated steelwork used in the construction of the pontoon will be to manufacturing standard of UniSite or other classification society.

All steel used to be blasted and shop primed both sides.

All materials proposed will be selected to comply with the latest Health and Safety Rules.

Paint systems for hull protection will be of the highest quality (Hempel, Inter, Sigma, Jotun)

D. Welding

All welding will be performed in accordance with drawing and order and UniSite experience and all welding will be continuous.

E. Workmanship

The workmanship on the hull and fittings throughout have good marine practice. Care are taken to ensure fair lines, smooth surfaces and neat welding. All materials and equipment installed in, or delivered with the pontoon will be new and of good marine quality

F. Main particulars

 

MAIN PARTICULARS

Tolerance

High accuracy(ISO2768, ISO5817, ISO13920)

Material

Grade A-D(BV,DNV,GL,LR,CCS) or other materials

Dimension(L*B*H)

As per drawing, as large as we can

Weight

5Ton~5000Ton

Coating

Sa2.5 blasted and two or three layers painted with highest quality

Marking

as per clients' requirements

Inspection

material, construction, dimension, welding seam, non defective test, tank pressure test, paint inspection

Others

Recyclable, in line with environmental requirements and standards, and reliable 

H. Certificates

- Material certificates by a classification society

- Inspection protocol

- Inspection reports tank testing

- NDT reports

- Official certificates for accessories and other equipment

- Fixed certificate: ISO9001, BV certificate, CCS certificate

Photos of our Pontoon


pontoon

Our Technology and Quality:
Offering our client best possible and most sustainable solutions to their requirement. Production procedure
Step1: Drawing and technical requirement analysis, production lofting;
Step2: Material cutting, trimming, groove, cleaning, bending, rolling, dimension & NDT inspection
Step3: From part assemble to whole assemble with accurate template and platform, dimension & NDT inspection, welding, dimension & NDT inspection;
Step3: Casting, forging, stamping, machining if necessary
Step4: Final dimension & NDT inspection;
Step5: Surface treatment;
Step6: Package, Loading and Lashing when delivery;

Steel Pontoon

Floating Steel Pontoon,Modular Floating Pontoon,Pontoon Bridge,Pontoon Floor

Unisite Group Ltd. , https://www.shipsparts.nl