行业组件数据 · 2026

下夹送辊

A lower pinch roll is a critical component in rolling mill systems that applies downward pressure to guide and control material flow during processing.

技术定义与适配语境
典型 下夹送辊 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

The lower pinch roll is a cylindrical rotating component positioned beneath the material path in pinch roll assemblies, designed to apply controlled compressive force in conjunction with an upper pinch roll. It functions to maintain proper material alignment, regulate feed speed, prevent slippage, and ensure consistent thickness during metal forming, paper processing, or textile manufacturing operations. Typically driven by motors through gear systems, it features precision bearings, surface treatments for wear resistance, and adjustable pressure mechanisms.

组件规格

定义
The lower pinch roll is a cylindrical rotating component positioned beneath the material path in pinch roll assemblies, designed to apply controlled compressive force in conjunction with an upper pinch roll. It functions to maintain proper material alignment, regulate feed speed, prevent slippage, and ensure consistent thickness during metal forming, paper processing, or textile manufacturing operations. Typically driven by motors through gear systems, it features precision bearings, surface treatments for wear resistance, and adjustable pressure mechanisms.
工作原理
Operates on the principle of controlled friction and compression. As material passes between the lower pinch roll and its upper counterpart, the rolls rotate in opposite directions, gripping the material through surface contact. The lower roll provides upward support while applying calibrated pressure to control material movement, thickness reduction, and directional stability. Pressure adjustment mechanisms (hydraulic, pneumatic, or mechanical) allow precise force modulation based on material properties and process requirements.
材料
Typically manufactured from forged alloy steel (AISI 4140/4340)hardened to 45-55 HRC for durability. Surface treatments include chrome plating (0.05-0.1mm thickness) or ceramic coating for wear and corrosion resistance. Alternative materials include ductile iron for lighter applications or tungsten carbide for extreme abrasion resistance.
Length
500-3000 mm
Diameter
150-600 mm
Surface Finish
Ra 0.4-1.6 μm
Maximum Pressure
50-200 kN
Rotational Speed
10-200 RPM
Runout Tolerance
≤0.05 mm
Surface Hardness
45-55 HRC
Temperature Range
-20°C to 200°C
标准
ISO 9001DIN 1543ISO 286-2DIN 8606

行业分类与别名

下夹送辊 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Inadequate lubrication of bearings->Increased friction leading to overheating and seizure->Implement automated lubrication systems with flow monitoring and schedule maintenance every 400 hours
Abrasive material contact->Surface degradation causing inconsistent material grip and thickness variation->Apply hard chrome or ceramic coatings, implement material pre-cleaning systems, and monitor surface wear with laser profilometry
Improper pressure calibration->Material deformation or slippage affecting product quality->Install digital pressure sensors with real-time feedback, implement automatic pressure adjustment algorithms, and conduct monthly calibration checks

工业生态与工程逻辑

0
Surface wear leading to inconsistent material grip
1
Bearing failure causing misalignment
2
Pressure system malfunction resulting in material damage
3
Thermal expansion affecting dimensional accuracy

合规与检测

tolerance
Diameter tolerance: ±0.1mm, Straightness: ≤0.05mm/m, Surface runout: ≤0.03mm TIR
test method
Dimensional verification via CMM, surface hardness testing per ISO 6508, pressure testing with calibrated load cells, rotational balance testing per ISO 1940-1

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来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the primary function of a lower pinch roll?

The lower pinch roll provides upward support and controlled pressure to guide materials through processing systems, ensuring consistent thickness, preventing slippage, and maintaining alignment during operations like metal rolling or paper manufacturing.

How often should lower pinch rolls be maintained?

Inspect bearings and surfaces every 500 operating hours, with full maintenance including alignment checks and surface reconditioning recommended every 2000-3000 hours depending on material abrasiveness and operating conditions.

Can lower pinch rolls be used with different materials?

Yes, but surface treatments and hardness should be selected based on material properties. Chrome-plated rolls work well with metals, while ceramic-coated versions are better for abrasive materials like minerals or reinforced composites.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

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初步技术归类
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请求制造能力信息: 下夹送辊

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URN:CNFX:ME:UNIT:LOWER_PINCH_ROLL