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NETHERLANDS METALLURGY EDITION

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Heat Resistance

> 850°C Radiant

The Operational Reality of Reheating Furnaces

In the integrated steelworks of the Netherlands, such as the massive complex at Velsen-Noord (IJmuiden), the Billet Pusher acts as the gatekeeper of production. It is responsible for incrementally advancing hundreds of tons of cold steel stock into the reheating furnace, where temperatures exceed 1200°C. This application presents a paradox of motion: extremely low speed combined with colossal starting torque. The friction between the billets and the skid rails, often exacerbated by scale buildup, requires a drive shaft capable of delivering a “break-away” torque that is often 300% higher than the running torque.

Furthermore, while the motors and gearboxes are shielded, the drive shafts often extend into zones of intense thermal radiation. In Dutch plants operating 24/7 to meet European production quotas, standard universal joints frequently fail due to “grease cooking”—where the lubricant hardens into a solid mass—or seal degradation caused by the abrasive iron oxide scale. The result is galling of the trunnions and catastrophic failure, forcing unplanned furnace shutdowns that can cost upwards of €50,000 per hour in lost throughput and energy waste.

The Ever-Power “Pyro-Push” Solution

Ever-Power는 다음을 설계했습니다. Pyro-Push™ Series specifically for this hostile environment. Unlike standard off-the-shelf components, our shafts feature a monolithic 42CrMo4V forged yoke structure designed to handle the cyclic stress of the “push-retract” motion without fatigue. We address the thermal challenge by utilizing high-temperature Calcium Sulfonate Complex grease, which maintains viscosity up to 280°C, and installing integral radiant heat shields made from aluminized ceramic fiber.

To combat the abrasive scale common in Dutch mills, we employ a “Fortress Seal” system—a triple-barrier design incorporating a stainless steel slinger, a labyrinth path, and a Viton-Extreme lip seal. This ensures that the microscopic abrasive dust generated during the pushing cycle never reaches the needle bearings. By adhering to NEN-EN 13001 safety factors, we provide a driveline component that matches the reliability of the furnace itself.

Case Study: North Sea Steelworks

Solving “Frozen Joint” Failure in Reheating Furnace #3

도전 과제: A major hot strip mill in the IJmuiden area was facing repeated failures of their Billet Pusher drives. The extreme heat radiating from the furnace door (approx. 900°C) was causing the standard grease in the universal joints to carbonize within 6 weeks, leading to “frozen” crosses that snapped under the start-up load.

에버파워 솔루션: 우리는 구현했습니다 Pyro-Push 850 Series with a ceramic-fiber insulated heat shield and our proprietary high-temp Ca-Sulfonate grease. We also upgraded the seal material to Viton-Extreme to resist the acidic sulfur fumes often present near the furnace.

영향: The maintenance interval was extended from 6 weeks to 12 months. The reduction in emergency maintenance and downtime saved the facility an estimated €180,000 in the first year alone.

엔지니어링 보고서를 읽어보세요

계급	제조업체	본부	핵심 역량
1	GWB(다나)	독일	초중량 카르단
2	보이스 터보	독일	High-Performance Spindles
3	에버파워 트랜스미션	중국(글로벌)	High-Temp Metallurgy Solutions
4	마이나 파워	이탈리아	기어 커플링
5	HZPT 주식회사	중국	산업용 전력 솔루션
6	GKN 오프로드	영국	파워트레인 기술
7	게베스	독일	롤러 베어링 샤프트
8	EP-드라이브 시스템	중국	대형 기어박스
9	벨테 그룹	독일	컴팩트 샤프트
10	엘베 그룹	독일	일반 산업

Heat is the enemy. Standard grease liquefies and fails. We recommend upgrading to Ever-Power shafts equipped with **Ceramic Fiber Heat Shields** and using our high-temp Ca-Sulfonate grease. Additionally, implementing a forced-air cooling system around the trunnions can significantly reduce internal operating temperatures.

We understand that a broken pusher stops the entire mill. Ever-Power utilizes a dedicated logistics channel. For urgent custom orders (e.g., matching a specific flange pattern for a legacy furnace), we can design, manufacture, and air-freight to Rotterdam or Amsterdam within 6-8 weeks, faster than many local OEMs.

Iron oxide scale is highly abrasive. If it enters the bearing cup, it creates a grinding paste that destroys the needle rollers. Our **Fortress Seal** system uses a multi-labyrinth design with a stainless steel flinger to physically repel scale particles, ensuring the seal integrity even in dirty environments.

Yes. Our heavy-duty shafts are designed with a Safety Factor >3.0 to handle shock loads, complying with **NEN-EN 13001** and the **Machinery Directive 2006/42/EC**. We provide full 3.1 Material Certificates and NDT reports to ensure seamless compliance with Dutch safety inspections.