Factory Direct Wholesale Chain Stitch Sewing Machine (singer 300U)

Main application & performance:
SG-300U chain stitch machine is a double chain stitch sewing head suitable for light or heavy fabric sewing, it can sew apparel or heavy material such as mattress.  it can be adopted as the sewing head on all  models of tape edge machine in the market. 

SG-300U sewing head offers excellent speed and thick fabric sewing capabilities. It is the first choice for mattress sewing in mattress production. 
 



Our Services:

1. After-sale service:
    Installation & Commissioning: The seller can provide the installation, commissioning and training
    service in buyer's factory, while the buyer needs to pay for VISA application, air ticket, accommodation,
    (if necessary) interpreting fee for seller's technician.

2. Warranty:For the machine above,the seller provides one year warranty starting from the moment
the seller dispatches the machines. For the detailed guarantee period of each part, please refer to the operation manual.Wearing parts,consumption material and the damage incurred by the buyer's incorrect operation are out of warranty range.

FAQ:

Voltage: Please pay attention to your country's voltage,
China is 220v 1phase 50Hz / 380v 3phase 60Hz. If different, please inform us in advance.

Our company: 
Nanjing Square Mattress Machinery Co., Ltd. (also named Nanjing Sifang Mattress 
Machinery Factory) was established in 1990. We are a specialized manufacturer of 
complete line mattress & sofa spring equipment. Our present products cover 10 series 
and more than 60 models. Our present factory covers an area of 35,000sqm with a 
14,000-square-meter workshop.
Presently, our company is running strictly in terms of ISO90001:2000 quality system. Our 
products sell well not only in China but also far in Europe, South America, North America,
 Australia, the Middle East, Asia, Africa, and other countries and regions all over the world. Our products make us win customers' trust and recognition widely. Our annual export 
volume is increasing rapidly. Any of your contacts or visits is sincerely welcomed. We look 
forward to making cooperation with you in the near future!   
 

PC polycarbonate Film

PC film is the abbreviation of polycarbonate film, which is an amorphous, odorless, non-toxic, highly transparent colorless or yellowish thermoplastic engineering plastic.

advantage
It has excellent physical and mechanical properties, especially excellent impact resistance, high tensile strength, bending strength, and compression strength; good heat resistance and low temperature resistance, stable mechanical properties in a wide temperature range, and size Stability, electrical properties and flame retardancy, can be used for a long time at -60~120℃; no obvious melting point, in a molten state at 220-230℃; high rigidity, high resin melt viscosity; low water absorption, low shrinkage , Small creep, high dimensional accuracy, good dimensional stability, low permeability of the film; self-extinguishing material; stable to light, but not resistant to ultraviolet light, good weather resistance; oil and acid resistance.

Disadvantage
The fatigue strength is poor, stress cracking easily occurs, and the wear resistance is poor. Poor resistance to solvents, not resistant to strong alkalis, oxidizing acids, amines and ketones, soluble in chlorinated hydrocarbons and aromatic solvents, and prone to hydrolysis and cracking in water for a long time.

pc film classification
PC films are divided into: halogen-free flame-retardant PC, black flame-retardant PC, transparent flame-retardant PC, frosted PC, transparent PC, hardened PC, scratch-resistant PC, scratch-resistant PC, printing-grade PC, optical-grade PC

pc film use
1. Flame-retardant pc film is used for power system insulation, disk drive insulation, keyboard insulation, TV/display insulation, and computer motherboard insulation. It is widely used in electronic components, electrical enclosures, switch panels, junction boxes and charger enclosures, automotive instrumentation and panel printing with flame-retardant requirements.

2. Printing grade frosted pc film is suitable for special printing, helmets, signs, nameplates, protective covers, etc.

3. Anti-scratch pc film Uses: window lenses for mobile phones, MP3, MP4, DVD, backlight and other electronic products

Pc Film,Pc Sheet Film,White Pc Film,Printing Pc Film

Shandong Top Leader Plastic Packing CO., LTD , https://www.sdzlplastic.com