- Model No.: DIN7991
- Type: Countersunk Head Bolt
- Head Style: Countersunk Design
- Grade: A2-70
- Certification: ISO, RoHS, SGS
- Available Material: Stainless Steel, Carbon Steel, Aluminum
- Strength Grades: 4.8, A2-70, A4-70, A4-80
- Length Range: 3–80mm
- Packing Options: Plastic Bags + Chipboard Carton + Plywood Pallet
- Shipping Packaging: Plastic Bag (500 pcs per bag), Outer Carton, Wooden Crate
- Origin: China
- Material: Stainless Steel
- Connection Type: Standard Bolt
- Standards: DIN, ANSI, GB, JIS, BSW, GOST
- Finish: Passivation
- Available Standards: DIN, ISO, JIS, ANSI, BSW
- Finishing Options: Zinc Plated, Galvanized, Nickel Plated, Geomet
- Size Range: 1.6–12mm
- Ports: Shenzhen, Shanghai
- Brand Name: JR
- Specifications: GB, ANSI, DIN
- HS Code: 731815100
Main Products | |
BOLT | DIN933, DIN931, DIN419, DIN558, DIN7990, DIN6922, ASME/ANSI B 18.2.1, ASME/ANSI B 18.2.3.1M, GB, BSW, ISO Hex Bolt, Carriage Bolt, Heavy Hex Bolt, Flange Head Bolt, Anchor Bolt, etc. |
Nut | DIN934, Heavy Hex Nut, 2H Nut, DIN555, Flange Nut, Cap Nut, Nylon Nut, etc. |
Screw | Hex Screw, Self-Drilling Screw, Self-Tapping Screw, Drywall Screw, Pan Head Screw, Button Head Screw, Machine Screw, Chipboard Screw, Furniture Screw, Wood Screw, etc. |
Washer | Flat Washer, Spring Washer, Lock Washer, Square Washer, Spring Lock Washer, Plain Washer, etc. |
Thread Rod | Threaded Rod DIN976, Threaded Bar DIN975, Stud Bolt, B7 Stud Bolt, etc. |
We also specialize in custom or non-standard items based on your design! |
Available Materials | Carbon Steel, Stainless Steel, Duplex Stainless Steel, Brass, Copper, Plastic, Aluminum |
Surface Treatment | Zinc Plated / Galvanized, Nickel Plated, HDG, Copper Plated, Anodized, Polishing, Powder Coating, Geomet, Dacromet, Passivation, Electrophoresis |
Equipment | Cold Forging Machine, Thread Rolling Machine, CNC Machine, Lathe Machine, Grinding Machine, Milling Machine, Drilling Machine, Casting Machine |
Processing Methods | Cold Forging, Stamping, Rolling, Bending, Casting, Extrusion, Milling, Welding, Turning |
Processing Drawings Format |
.jpg, .pdf, .dwg, .igs, .stp, etc. |
Trade Terms | EXW, FOB, CIF, DDP, CFR, or as discussed |
Payment Terms | T/T, L/C, Western Union |
Packaging | Plastic Bag + Chipboard Carton + Plywood Pallet with Belt and Film |
Selection and precautions of hydraulic cylinders for excavators
The hydraulic cylinder of an excavator is one of the important components, which converts hydraulic energy into mechanical energy,
Drive mechanical movement. When purchasing hydraulic cylinders for excavators, the following points should be noted:
1. Size and quality: The size and quality of the excavator hydraulic cylinder should match the model and specifications of the excavator to ensure its normal operation.
2. Pressure and flow rate: The pressure and flow rate of the excavator hydraulic cylinder should match the requirements of the hydraulic system,
To fully utilize the capabilities of the hydraulic system.
3. Sealing performance: The hydraulic cylinder of the excavator has good sealing performance to avoid hydraulic oil leakage or entering the mechanical interior.
4. Durability: The hydraulic cylinder of the excavator has good durability and can withstand long-term heavy load work.
5. Brand and Quality: Choose well-known excavator hydraulic cylinders to ensure their quality and after-sales service
For Zaxis Cylinder Seal Kit,Bucket Cyl Kit,Travel Motor Seal Kit,Middle Arm Cylinder Seal Kit
Safe Seal Technology Co., Ltd. , https://www.sprsealkits.com