cardan shaft for rolling mill

Cardan Shaft for Rolling Mill: Engineered for Heavy-Duty Torque Transmission

1. Operational Challenges Solved by Precision-Engineered Cardan Shafts

Rolling mills demand reliable torque transmission under extreme loads. Common pain points include:

• Unplanned Downtime: Failed couplings cause 8–12 hours of production loss per incident (industry average).
• Maintenance Costs: Premature wear in standard shafts increases replacement frequency by 30–50%.
• Vibration Issues: Misalignment leads to bearing damage, costing $15,000+ annually in secondary repairs.
• Energy Inefficiency: Poor torque transfer wastes 5–8% of motor output power.

Does your operation face recurring shaft failures? Are vibration-related maintenance costs cutting into profitability?

2. Product Overview: Heavy-Duty Cardan Shaft for Rolling Mills

Equipment Type: Universal joint shaft with forged alloy yokes and precision-ground bearings.
Operational Workflow:

1. Torque transfer from motor to rolling mill stands.
2. Accommodates angular misalignment (±15°) and axial displacement.
3. Absorbs shock loads during mill start-up/stoppage.
   Applications: Hot/cold rolling mills, plate mills, bar mills (max torque capacity: 250 kNm).
   Limitations: Not suitable for high-speed applications (>1,200 RPM).

3. Core Features: Performance-Backed Design

Forged Alloy Yokes | Technical Basis: DIN 7526E | Operational Benefit: 2x fatigue life vs. cast steel | ROI Impact: Reduces replacement cycles by 40%

Precision-Ground Bearings | Technical Basis: ISO 3019-2 | Operational Benefit: Eliminates lubrication-related failures | ROI Impact: Cuts maintenance labor by 25 hours/year

Dynamic Balancing | Technical Basis: ISO 1940 G6.3 | Operational Benefit: Vibration <2.5 mm/s at full load | ROI Impact: Extends gearbox lifespan by 18%

Modular Flange Design | Technical Basis: SAE J518c | Operational Benefit: Quick replacement (<90 minutes) | ROI Impact: Saves $8,000+/incident in downtime costs

Corrosion-Resistant Coating | Technical Basis: ASTM A123 | Operational Benefit: Withstands mill coolant/spray environments | ROI Impact: Avoids annual recoating ($3,200/unit)

4. Competitive Advantages: Measurable Improvements

5. Technical Specifications

• Torque Range: 50–250 kNm (custom configurations available)
• Speed Limit: ≤1,200 RPM
• Materials: 42CrMo4 yokes, Ni-Cr-Mo alloy bearings
• Operating Temp.: -30°C to +120°C
• Standard Lengths: 800–3,500 mm (tolerance ±0.1 mm/m)

6. Application Scenarios

Steel Plate Mill Challenge: Frequent yoke fractures causing weekly downtime (avg. repair cost: $12,000). Solution: Upgraded to forged yokes with dynamic balancing. Results: Zero fractures in 18 months; vibration reduced to ISO G6.3 standards.

Aluminum Cold Rolling Mill Challenge: Lubrication contamination led to bearing seizures. Solution: Sealed bearing cardan shaft. Results: Maintenance intervals extended from quarterly to biannual.**

7. Commercial Considerations

• Base Model Pricing: $9,800–$28,000 (varies by torque rating)
• Optional Features:** Telemetry sensors (+$1,200), custom coatings (+$950)
• Service Packages: Annual inspection ($1,500), emergency repair dispatch (24/7 global coverage**)

8.FAQ

Q1: Can your cardan shaft replace our existing OEM coupling without mill modifications?
A: Field data shows compatibility with >90% of rolling mill drive trains; flange dimensions are SAE/DIN compliant.*

Q2: How does vibration reduction impact roller bearing life?
A: Testing confirms a direct correlation—vibration below ISO G6.3 extends bearing service life by minimum.*

Q3: What financing options are available for multi-unit orders?
A: Lease-to-own and extended payment terms reduce upfront CAPEX.*

Specifications subject to engineering review based on application parameters.