Steel Forged Sleeves
- Material Versatility: Stainless steel, alloy steel, carbon steel, and custom grades upon request.
- Dimensional Precision: Machining accuracy controlled within ±0.02 for critical tolerances.
- Wide Size Range: Produced fully according to customer drawings and special sleeve geometries.
- High Mechanical Strength: Forged sleeves reach tensile strength levels of 550–950 MPa depending on steel grade.
- Large Production Capacity: 500–1000 tons/month with CNC loading up to 32 tons (machining) and 70 tons (heavy-duty).
Technical Specifications
| Parameter | Specification |
| Size | According to customer drawings |
| Standards | GB, JIS, or custom |
| Materials | Carbon steel, alloy steel, stainless steel, special grades |
| Forging Types | Open forging / Die forging |
| Heat Treatment | Q&T, annealing, normalizing |
| Machining | Turning, milling, drilling, grinding, boring |
| Testing Reports | Hardness / UT / MT / Dimensional / Mechanical |
| Certifications | ISO9001, PED, SGS |
| Delivery Time | 15–30 days (urgent), 30–45 days (normal) |
Customization & OEM Service
- Custom sleeve geometry including stepped, tapered, straight, or heavy-walled designs based on drawings.
- Material customization across carbon steel, alloy steel, stainless steel, and wear-resistant steels.
- Tailored machining options: boring, honing, taper machining, spline machining, internal & external grinding.
- Heat-treatment customization (Q&T, normalizing, annealing) for strength, toughness, or wear performance.
- Prototype to mass-production support (MOQ = 1 piece sample service).
- Custom export packaging & logistics for heavy, large-size forged sleeves (FOB, CIF, DDP; sea/air/train).
Industries Served
- Oil & Gas / Petrochemical: Wear-resistant sleeves, bushings, drilling components.
- Machinery Manufacturing: Bearing sleeves, coupling sleeves, precision housings.
- Mining & Heavy Industrial: Crusher sleeves, grinding mill sleeves, protection cylinders.
- Power Generation: Turbine sleeves, generator sleeves, thermal & hydro machinery parts.
- Metalworking & Gear Production: Gear sleeves, reducer sleeves, press equipment components.
- Pulp & Paper / Food Processing: Agitator sleeves, mixer sleeves, processing equipment bearings.
- Marine & Construction Equipment: Hydraulic cylinder sleeves, rope drum sleeves, heavy equipment housings.
Manufacturing Capabilities
Forging Facilities
- 6300T / 3150T / 2000T free hydraulic presses.
- 5T, 3T, 2T, 1T, 750kg, 560kg electro-hydraulic hammers.
Heating Treatment Facilities
- RTX-9 series trolley furnaces in multiple sizes (5.5–8 m chamber length).
- RJ-9-850KW vertical furnace with 15 m depth.
- RTX-12-350KW high-temperature trolley furnace.
Machining Facilities
- CNC machines (max 32-ton load).
- Heavy-duty lathes and vertical mills (up to 70 tons).
- Gantry milling machines, deep-hole boring machines, grinding and turning centers.
Testing & Quality Control
- Spectrum analysis for chemical composition.
- Ultrasonic, non-destructive, and metallographic testing.
- Mechanical property test machines for yield, tensile, hardness.
Production Process
- Raw Material Selection: Use first-grade ingot steel, inspect chemical composition.
- Forging: Heat to precise temperature, perform open die or die forging.
- Heat Treatment: Quenching, tempering, or normalizing to meet mechanical targets.
- Machining: CNC turning, boring, milling, grinding, and drilling to precision ±0.01 mm.
- Inspection: Each shaft tested via 100% ultrasonic, hardness, and tensile checks.
- Packaging & Delivery: Anti-corrosion coating, safe transport packaging, global logistics support.
Additional Value-added Services
- Quench-and-temper heat treating
- Rough and finish turning
- Ultrasonic and mechanical testing
- Dimensional inspection reports
- Customized design and programming support
Quality Assurance
- Each forging carries a test bar for mechanical testing.
- 100% ultrasonic and visual inspection before shipment.
- Hardness, tensile, and metallographic verification.
- Compliance with ASTM, DIN, GB, and EN standards.
Why Choose Boberry
Integrated Production
Complete forging-to-machining production line ensures precision and fast delivery.
Advanced Equipment
Heavy-duty forging presses and CNC systems handle large, complex mechanical component geometries.
Certified Assurance
Certified production with ISO9001, PED, SGS compliance and global OEM support.
Logistics & Delivery
Lead Time: 15–30 days (urgent) / 30–45 days (normal).
Monthly Capacity: 500–1000 tons.
Packing: Wooden crates, steel frames, or per client request.
Shipment: By Sea (recommended, saves cost for forging parts) / By Air (fast but expensive).
Payment Terms: 30% deposit with balance via B/L copy; or 100% L/C at sight.
Delivery Terms: FOB, CIF, CNF.
Monthly Capacity: 500–1000 tons.
Packing: Wooden crates, steel frames, or per client request.
Shipment: By Sea (recommended, saves cost for forging parts) / By Air (fast but expensive).
Payment Terms: 30% deposit with balance via B/L copy; or 100% L/C at sight.
Delivery Terms: FOB, CIF, CNF.