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About UsShijiazhuang Xuda Safety Tools Co., LTD. which was established in 1986 , is a professional factory to produce non-spark safety tools in China. Professional technology, advanced producing equipment, scientific processing technique and perfect checking measure guarantee the best quality of xinda non-spark safety tools.
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ProductsThere are 10 categories,more than 180 series and thousands of types of the tools, all of products are made of Aluminum bronze or beryllium copper, the products have the feature of high rigidity, good tenacity.
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NewsXinda always sticks to the following enterprise principle:"develop by quality, treat the customers with honesty and credit".We hope that our products can provide more safety and convenience to all of the customers and we welcome all the friends at home abroad to Xinda.
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ServiceWe can also design and produce the special type products as the customer’s requirement. Xinda always sticks to the following enterprise principle:"develop by quality, treat the customers with honesty and credit". We hope that our products can provide more safety and convenience to all of the customers.
Description
| 1421 Reversible Ratchet Wrench | |||
| NO. | SIZE | NO. | SIZE |
| 142101 | 1/4”×150mm | 142105 | 3/4”×430mm |
| 142102 | 3/8”×200mm | 142106 | 1”×500mm |
| 142103 | 1/2”×245mm | 142107 | 3/4”×160mm |
| 142104 | 3/4”×300mm | 142108 | 1”×180mm |
Non sparking tools is also called safety tools or explosion proof tools.There are two types of materials.
1,Aluminum bronze,Al-Cu,aluminum,nickel,manganese,iron and other metals were added to the high purity electrolytic copper as matrix to form copper-based alloy.
2,Beryllium copper,Be-Cu,the copper base alloy was forming by adding some metals such as beryllium,nickel.
The thermal and electrical conductivity of these two materials are very good,beryllium bronze is non-magnetic and can be used in strong magnetic fields.
Explosion proof tools can be divided in two catagories by manufacturing process.
1.Cast,is a kind of traditional technique,it is an international technology for manufacturing explosion proof tools in 1980s.
Advantages of casting process: simple process,lower manufacturing cost.
Disadvantages: product density,hardness,tensile strength,low torque,more pores and trachoma lead to shorter service life.
2.Forging,is a kind of international manufacturing technology.Products can be made one-time forging by large press or punch press with heat-resistant forming die.
Advantages:greatly improved the performance in product density,hardness,tensile strenth,torque,basically eliminate porosity,trachoma.The machanical properties of products service life than traditional casting process 1 times.
Disavantages: product equipments,mold development,resulting higher cost.
Non- sparking spanners
Technical
| Be-Cu | |
| Green lake, GBEX IC,for hydrogen with concentration 21.0+2.0%. | |
| Hardness | HRC35 |
| Tensile strength | δ b 105-120kgf/mm² |
| Al-Cu | |
| Bluish yellow, GBEX IIB, for ethylene with concentration 7.8+0.5% | |
| Hardness | HRC25 |
| Tensile strength | δ b 75-85kgf/mm² |
Keywords
1421 Reversible ratchet wrench
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