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A jack is a lightweight lifting device that uses a steel lifting element as a working device to lift heavy objects within its travel through a top support or bottom support claw. Mainly used in factories, mines, transportation and other departments as vehicle repair and other lifting, support and other work. Its structure is lightweight, sturdy, flexible and reliable, and can be carried and operated by one person.
working principle:
Jacks are divided into mechanical jacks and hydraulic jacks, each with different principles. In principle, the most basic principle on which hydraulic transmission is based is Pascal's law, which means that the pressure of the liquid is uniform everywhere. In this way, in a balanced system, the pressure applied on the smaller piston is relatively small, while the pressure applied on the larger piston is also relatively large, which can maintain the stillness of the liquid. So through the transfer of liquid, different pressures can be obtained at different ends, achieving the purpose of transformation. The commonly used hydraulic jack utilizes this principle to achieve force transmission. The screw jack uses a reciprocating lever to pull out the claw, which pushes the ratchet clearance to rotate. The small umbrella gear drives the large umbrella gear, causing the lifting screw to rotate, thereby enabling the lifting sleeve to lift or lower, achieving the function of lifting tension. However, it is not as simple as a hydraulic jack.
Function: Used for lifting, supporting, etc., when replacing car tires.
Material Alloy steel,Carbon steel, Stainless steel 304 or 316 Technology Drop forged Finish Hot Dipped Galvanized, Electro Galvanized,Spray Painting,High polished, Mirror Polished Certificate CE certificate Testing 100% proof load tested and 100% calibrated Usage Lifting and connecting Main Standard Lifting Eye Hook S320,Swivel Hook S322,Slip Hook 324 and 331,Grab Hook 323 and 330,G80 Hooks,many other shaped lifting and chain hooks as request.
Product name: SPLIT PIN Grade: 4.8-10.9 Diameter: 1.6~7.1 Surface treatment: Black,zinc plated,zinc(yellow)plated,H.D.G ,Dacroment Material: stainless steel,alloy steel,steel Packing: 25kgs per box,36 boxes per pallet,900kgs per pallet. Sample: Sample are free. Standard: DIN, ANSI, GB, JIS, BSW, GOST Head mark: Customized
-dewell fastener factory provides bolt and nut.washer.Metal Stamping products.Caster wheels.lifti...
Production name Wedge anchor bolt Standard DIN,ASTM/ANSI JIS EN ISO,AS,GB Material Stainless Steel: SS304, SS316, SS316L, Carbon Steel:DIN:Gr.4.8,8.8,10.9,12.9; Surface Zinc(Yellow,White,Blue,Black),Hot Dip Galvanized(HDG),Black, Geomet,Dacroment,Anodization,Nickel plated,Zinc-Nickel plated,Gleitmo615;PTFE(Blue,red) Production Process Machining and CNC for Customized fastener Customized Products Lead time Busy season:30-45days,Slack seaon:10-20days;In stock Package Small Packing+Carton Packing+Pallet/wooden case
Standard GB, DIN, ISO, JIS Size M3-M50 or non-standard as request&design Material Carbon steel, stainless steel, alloys steel etc. Hex head bolt and nut Grade 4.8 / 6.8 / 8.8 / 10.9 / 12.9 , A2-70 / A4-80 Packing Box, carton or plastic bags, then put on pallets, or according to the demand of the customers
Metal Stamping parts products Building hardware stamping parts Can be made into different size according to customer’s requirements. Material: carbon steel, stainless steel,aluminum,copper,etc. Finish: white zinc plated, blue zinc plated, etc.
-dewell fastener factory provides bolt and nut.washer.Metal Stamping products.Caster wheels.lifti...
Product Name ratchet buckle Capacity 800KG-5000KG Material steel Width 25mm-100mm Colour can be customized MOQ 100 Application Goods bunding,warehousing and logistics,goods transportation Packing Standard Export packing or according to customer’s rerquirem
Structure of electric vehicle follow-up brake: It mainly includes components such as brake box, two brake shoes, crank, reset spring, adjusting parts, tension column, etc. Specifically, the working principle of the follow-up brake is to increase the rotation angle of the two brake shoes during braking through the setting of metal plates and reels, thereby increasing the maximum braking resistance. This structure achieves the adjustment of braking effect through two brake shoe blocks hinged on the hinge shaft fixed on the brake box, as well as adjusting components provided on the brake box on one side of the hinge shaft. In addition, the follow-up brake also has a lock that can lock the brake disc components, providing dust-proof and waterproof functions to ensure brake sensitivity
Communication equipment stamping parts
Hexagonal Self-drilling screw Diameter: 4.8mm, 5.5mm,6.3mm(10#,12#,14#), etc. Length: 16-300mm Material: carbon steel, stainless steel, etc. Finish: white zinc plated, yellow zinc plated, blue zinc plated, etc.
Material Carbon Steel, Alloy Steel, Stainless Steel, Aluminum, Brass, etc. Color Black / Blue / Yellow Zinc Plated / Plain etc. Standard DIN, ASTM,JIS,BS,AS,ISO,GB,Nonstandard bolt(according to your order),etc. Surface Finished Black,Zinc plated,Copper plating,Phosphating,Mechanical galvanized,hot dipped galvanized,daromet etc Mark According to customer’s requirement Delivery time Within 30 days after receive your deposit. Package By carbon or gunny bag then on wooden pallet or according to client’s requirement Professional: We are specialized in fastener products 20 years of experience in this field Size: According to customer request CustomerService: 24-hours standby, Critical listening your every suggestion or demand and feedback ASAP.
A hinge is a mechanical device used to connect two solids and allow for relative rotation between them. It is usually composed of movable components or foldable materials. The main function of the hinge is to assist in the opening and closing of the cabinet, by connecting the rotating pair, so that the door or cover can swing on the fixed frame. According to different installation positions, hinges can be divided into door hinges and cabinet hinges. Door hinges are used to allow doors to rotate naturally and smoothly to open and close, while cabinet hinges have more functions and designs, such as rotating 360 degrees, adjusting the gap between doors up, down, and left and right.
Standard GB, DIN, ISO, JIS Size M3-M50 or non-standard as request&design Material Carbon steel, stainless steel, alloys steel etc. Hex head bolt and nut Grade 4.8 / 6.8 / 8.8 / 10.9 / 12.9 , A2-70 / A4-80 Packing Box, carton or plastic bags, then put on pallets, or according to the demand of the customers
Material Alloy steel,Carbon steel, Stainless steel 304 or 316 Technology Drop forged Finish Hot Dipped Galvanized, Electro Galvanized,Spray Painting,High polished, Mirror Polished Certificate CE certificate Testing 100% proof load tested and 100% calibrated Usage Lifting and connecting Main Standard Lifting Eye Hook S320,Swivel Hook S322,Slip Hook 324 and 331,Grab Hook 323 and 330,G80 Hooks,many other shaped lifting and chain hooks as request.
Product name: SPLIT PIN Grade: 4.8-10.9 Diameter: 1.6~7.1 Surface treatment: Black,zinc plated,zinc(yellow)plated,H.D.G ,Dacroment Material: stainless steel,alloy steel,steel Packing: 25kgs per box,36 boxes per pallet,900kgs per pallet. Sample: Sample are free. Standard: DIN, ANSI, GB, JIS, BSW, GOST Head mark: Customized
-dewell fastener factory provides bolt and nut.washer.Metal Stamping products.Caster wheels.lifti...
Production name Wedge anchor bolt Standard DIN,ASTM/ANSI JIS EN ISO,AS,GB Material Stainless Steel: SS304, SS316, SS316L, Carbon Steel:DIN:Gr.4.8,8.8,10.9,12.9; Surface Zinc(Yellow,White,Blue,Black),Hot Dip Galvanized(HDG),Black, Geomet,Dacroment,Anodization,Nickel plated,Zinc-Nickel plated,Gleitmo615;PTFE(Blue,red) Production Process Machining and CNC for Customized fastener Customized Products Lead time Busy season:30-45days,Slack seaon:10-20days;In stock Package Small Packing+Carton Packing+Pallet/wooden case
Standard GB, DIN, ISO, JIS Size M3-M50 or non-standard as request&design Material Carbon steel, stainless steel, alloys steel etc. Hex head bolt and nut Grade 4.8 / 6.8 / 8.8 / 10.9 / 12.9 , A2-70 / A4-80 Packing Box, carton or plastic bags, then put on pallets, or according to the demand of the customers
