Offers to Sell

Established in 2001, 984 workers,400,000 square meters, 23 years experience,Our First Textiles Co.,Ltd providing woven fabric and knitting fabric, dyed and printed. Near shanghai port and Ningbo port. T/C broadcloth T/C poplin 45x45 110x76 44/45 58/60 Cotton poplin, Cotton spandex poplin 40x40+40d 100% polyester fabric, polyester satin, Dull satin, Bridal satin Polyester Chiffon,Georgette,koshibo,Taffeta,Pongee. Eyele , t embroidery fabrics.all over,one side scallop,double side scallop. 100% linen 14x14 54x54,100% ramie 21x21 60x60 100% Polyester plaid fabrics. Tartan fabric, Yarn dyed gingham. Chinese satin fabrics, brocade satin fabric,Jacquard Curtin fabrics. If any product meet your demand,pls contact us for further information. Best regards Tony Sheng

Minimum Order: 1000

First Textiles Co.,Ltd Mainly supply the following goods since 2001. Our factory near shanghai port and ningbo port. T/C broadcloth T/C poplin 45x45 110x76 44/45 58/60 Cotton poplin, Cotton spandex poplin 40x40+40d 133x72 100% linen 6x6 41x35 54/55 100% ramie 21x21 60x60 54/55 100% polyester chiffon,georgette,koshibo. 100% polyester satin, Dull satin, Bridal satin All over eyelet embroidery fabrics. 100% Polyester plaid fabrics 58/60 Chinese satin fabrics, Jacquard Curtin fabrics. Any interested, contact us! Regards Tony Sheng First Textiles Co.,Ltd Tel: 15720776581 Fax:0523-2053409 Email: Jiangsu@firsttextiles.cn Add: 38# Daying Town,Xinhua TaiZhou Jiangsu Province,China 225700.

Established in 2001, 984 workers,400,000 square meters, 23 years experience,Our First Textiles Co.,Ltd providing woven fabric and knitting fabric, dyed and printed. Near shanghai port and Ningbo port. T/C broadcloth T/C poplin 45x45 110x76 44/45 58/60 Cotton poplin, Cotton spandex poplin 40x40+40d 100% polyester fabric, polyester satin, Dull satin, Bridal satin Polyester Chiffon,Georgette,koshibo,Taffeta,Pongee. Eyele , t embroidery fabrics.all over,one side scallop,double side scallop. 100% linen 14x14 54x54,100% ramie 21x21 60x60 100% Polyester plaid fabrics. Tartan fabric, Yarn dyed gingham. Chinese satin fabrics, brocade satin fabric,Jacquard Curtin fabrics. If any product meet your demand,pls contact us for further information. Best regards Tony Sheng

Minimum Order: 1000

To be your China Representative offices.for fabrics and textiles. Where to buy in China? The first step is to find a reliable textile supplier. 1>If you don't have a good textile supplier, it does not matter how good your sourcing agent is. You can use a sourcing agent to help you find one. The problem is that finding the right sourcing agent. isn't easy and requires some research on your part to ensure that the person or firm is capable of helping you. 2>If you are new to the market of China, it's quite obvious that you have no idea about how you can find a reliable sourcing agent in China. 3>looking out for a reliable source that will help you come through everything from scratch can be a bit tough. So, here I shall help you with a bit of statistics to choose the best among the rest. 4>Maybe you have done business with Chinese for several years, but still not find a good partner. That can happen to everyone, for really very difficult to find good partners who really concern your business. 5>We need a good partner, Can we trust you? This is a normal question we will meet with new customers. Everyone knows how important a good partner is. and Today we have one new customer ask this again, so I have one idea to share some feedback from our worked customers! As really we know, Sometimes it doesn't matter what we say, but what our customers say. Interested, contact Jerry: Tobeyourchinaoffice at firsttextiles dot cn

Minimum Order: 1000

In sorting robot systems, the sealing performance of vacuum suction cups directly determines gripping stability and overall operational reliability. As a critical sealing element, the O-ring plays a decisive role in vacuum system performance. Its material selection, dimensional matching, and installation accuracy are key factors influencing vacuum stability. To achieve consistent and repeatable vacuum adsorption, the following aspects should be carefully controlled. Principles for O-Ring Material Selection Material selection should be based on actual operating conditions, including vacuum level, temperature range, media exposure, and service life requirements, rather than simply choosing the highest-grade material available. Nitrile Rubber (NBR) NBR offers good wear resistance, stable elasticity, and excellent cost performance. Typical operating temperature ranges from -40°C to 125°C. Suitable applications include standard sorting environments, systems without aggressive chemical media, and low- to medium-temperature vacuum applications. Due to its balanced performance and cost efficiency, NBR is widely used in vacuum suction cups for sorting robots. Fluoroelastomer (FKM) FKM is characterized by excellent high-temperature resistance, chemical stability, and low outgassing properties. Its maximum operating temperature can reach approximately 250°C. It is suitable for high-temperature environments, applications with oil mist or chemical exposure, and vacuum systems with higher stability requirements. Under demanding operating conditions, FKM provides superior long-term sealing reliability. Perfluoroelastomer (FFKM) FFKM offers outstanding resistance to extreme temperatures, up to about 325°C, as well as strong acids and alkalis. It is typically used in extreme operating conditions or high-end applications such as semiconductor manufacturing, chemical processing, and advanced automation systems. Due to its high cost, FFKM is generally reserved for specialized or premium projects. Installation and Structural Design Considerations In practical applications, installation accuracy often has an equal or even greater impact on vacuum stability than material selection. Compression Ratio Control For dynamic sealing, the recommended compression ratio is 6 to 20 percent. For static sealing, the compression ratio should be maintained between 15 and 30 percent. Insufficient compression can lead to leakage, while excessive compression accelerates material aging and reduces service life. Seal Groove Design The groove width should be at least 1.4 times the O-ring cross-section diameter. The groove inner diameter should be slightly smaller than the O-ring inner diameter to ensure proper pre-compression after installation. A well-designed groove helps prevent rolling, extrusion, or instability of the O-ring during operation. Surface Finish Requirements The recommended surface roughness of the sealing area is Ra 0.8 micrometers or better. Groove surfaces should be free of burrs and sharp edges to avoid cutting damage or stress concentration. High-quality surface finishing is essential to minimize micro-leakage in vacuum systems. Common Issues and Practical Recommendations Avoid using lubricants containing molybdenum disulfide, as such additives may react adversely with rubber materials and shorten sealing life. For high-vacuum applications, gas permeability and outgassing performance should be carefully considered, with preference given to low-outgassing materials. A regular inspection and replacement schedule should be established. O-rings showing signs of hardening, deformation, or cracking should be replaced promptly. The suction cup and workpiece surfaces should be kept clean. Dust, oil contamination, or foreign particles can directly compromise sealing contact and reduce adsorption efficiency. Stable vacuum adsorption in sorting robots is not determined by a single component but by the combined effect of material selection, structural design, and installation quality. By selecting appropriate O-ring materials, optimizing sealing groove design, and following standardized installation procedures, the stability and service life of vacuum systems can be significantly improved. For application-specific optimization based on operating conditions, equipment models, or large-scale deployment, further technical discussion is always recommended.

Minimum Order: 1000

Premium Chinese Polyols, Sweeteners and Nutraceutical ingredients. Healthy solutions for food, beverage and healthcare industries. Strategic partner with technical expertise, agile logistics, and tailored formulation support. https://www.newnaturebio.com/

We have a modern plant and professional production equipment, and a team of experienced ball valve design engineers. We focus on ball valve design for more than 20 years, and can provide customers with professional technical solutions.  https://www.wzldballvalve.com/

One-stop solution for SMT smart factory, providing various pick and place machine, insertion machine, semi-conductor manufacture machine, spare parts and so on. Wholesale products made in China here from our factory. Contact us for quotation. https://www.highlymachine.com/

Everheal is one of the largest manufacturers Pharmaceutical Equipment of in China. We have an excellent R&D team and rich experience. Looking forward to your inquiry. Contact us for OEM services and a quotation. https://www.everhealgroup.com/

For palletizing robot gripper cylinders, O‑rings must withstand frequent reciprocating motion, resist wear, tolerate oil exposure, and maintain reliable sealing under high‑frequency operation. Selecting the right material is essential for ensuring long‑term performance and system stability. Below are several commonly used rubber materials and their suitability for this type of application. Hydrogenated Nitrile Rubber (HNBR) HNBR is an upgraded version of standard nitrile rubber. It offers enhanced resistance to oil, heat, and oxidation. Its excellent wear resistance makes it particularly suitable for applications involving continuous reciprocating motion, especially in high‑temperature or chemically aggressive environments. Typical Applications High‑temperature, oil‑rich, and chemically corrosive environments. Advantages Strong wear resistance Excellent heat and chemical resistance Disadvantages Higher cost compared with standard NBR HNBR is ideal for applications requiring both high sealing performance and durability, especially where frequent motion and elevated temperatures are present. Polyurethane (PU) PU is known for its outstanding wear resistance and elasticity, making it a strong candidate for high‑frequency reciprocating applications. It can withstand prolonged friction and impact, and its hardness can be adjusted to meet the needs of pneumatic and hydraulic systems. Typical Applications Low‑ to medium‑temperature environments, particularly where abrasion is a major concern. Advantages Exceptional wear resistance Good elasticity Suitable for high‑frequency motion Disadvantages Poor high‑temperature resistance and prone to aging under heat If your cylinder experiences significant wear during frequent motion, polyurethane is a highly suitable choice. Nitrile Rubber (NBR) NBR is one of the most widely used O‑ring materials. It provides good oil resistance and moderate wear resistance, making it suitable for most hydraulic and pneumatic systems involving lubricants, oils, and fuels. Typical Applications General operating temperatures from −40°C to 125°C, especially in oil‑based environments. Advantages Excellent cost‑performance ratio Good oil and wear resistance Disadvantages Limited high‑temperature capability For most non‑extreme working conditions, NBR offers a practical and economical solution, especially for oil‑based sealing applications. Fluorocarbon Rubber (FKM) Compared with NBR, FKM provides superior heat and chemical resistance. It is widely used in high‑temperature and corrosive environments where sealing reliability is critical. Typical Applications High‑temperature environments (up to 250°C) and chemically aggressive conditions. Advantages Excellent heat resistance Strong chemical resistance Disadvantages Higher cost Poor low‑temperature flexibility If your system frequently operates at elevated temperatures or comes into contact with chemicals, FKM is a strong candidate. Perfluoroelastomer (FFKM) FFKM is one of the most advanced rubber materials available today. It can withstand temperatures above 230°C for extended periods and resists nearly all chemicals, including strong acids, strong bases, and organic solvents. Its extremely low friction coefficient helps reduce wear during reciprocating motion. Typical Applications Extreme high‑temperature and highly corrosive environments. Advantages Outstan , ding heat resistance Exceptional chemical resistance Low friction and reduced wear Disadvantages Very high cost For the most demanding environments where sealing performance must remain stable under extreme conditions, FFKM is the premium choice. How to Choose the Right O‑Ring Material When selecting an O‑ring material for a palletizing robot gripper cylinder, consider the following factors: Operating Temperature High temperatures: FKM or FFKM Low to moderate temperatures: NBR or PU Oil Exposure Oil‑rich environments: NBR or HNBR Wear Resistance Requirements High‑frequency reciprocating motion: PU or HNBR In practical applications, NBR offers an economical solution for low‑ to medium‑temperature oil environments. For higher heat and chemical resistance, FKM and HNBR are more suitable. If wear resistance is the priority, PU performs exceptionally well. In extreme conditions, FFKM delivers unmatched performance, though at a significantly higher cost. Selecting the right O‑ring material requires a balanced consideration of temperature, oil exposure, wear resistance, and budget. Each material offers unique advantages and is suited to specific working conditions. Making the right choice will significantly enhance system stability and extend the service life of the gripper cylinder.

Minimum Order: 1000

Popcorn mold for footwear. The mold material is the aluminium. The maintain basic Popcorn mold life is 20K pairs per set mold (average by one year continually production).

Minimum Order: 1 bags

Rubber mold for footwear. The mold material is the mold steel. The maintain basic mold life is 20k pairs per set mold (average by one year continually production).

Minimum Order: 1 bags

Injection plastic mold (TPU mold) for footwear. The mold material is the steel. The maintain basic plastic mold life is 200~300K pairs per set mold (at least 2~3 years).

Minimum Order: 1 bags

Compression EVA mold for footwear. The mold material is the aluminium. The maintain basic CM mold life is 20K pairs per set mold (average by one year continually production).

Minimum Order: 1 bags