Conveyor guide roller selection guide: matching type and material according to cargo characteristics

​​一、导辊类型选择：货物特性决定核心配置​​

​sore point​：选错类型导致货物卡滞、磨损加剧
​prescription​：根据货物形态精准匹配导辊类型

• ​​箱式规则货物​​（如纸箱、金属料箱）：
  • ​​直辊筒​​：通用性强，确保货物底面≥3支辊筒支撑
  • ​Spacing formula​：辊筒中心距≤1/4货物长度，防塌陷
• ​​软包/不规则货物​​（如编织袋、软包）：
  • ​​托盘承载+无动力辊筒​​：避免直接接触导致变形
  • ​Rubber-coated rollers​：增加摩擦力，防滑移（倾角＞3°时必备）
• ​​转弯输送场景​::
  • ​​锥形辊筒​​：锥度3.6°为主流，转弯半径需＞货物对角线1.2倍

​personal viewpoint::30%的输送线故障源于类型误选——刚性货物用锥辊会导致跑偏，软包用直辊易卡死，精准匹配是降本第一环。

​​二、材质选择：环境与成本的最优解​​

​data comparison​：不同材质性能成本差异达40%

​​特殊场景应对​::

• ​​低温环境​​（-25℃以下）：禁用PVC胶套（脆化），选全钢制
• ​​高磨损场景​​（金属零件）：镀硬铬或不锈钢，耐磨性＞镀锌辊200%

​​三、选型实战：三步锁定最优方案​​

​​Step 1. 重量定规格​​

• 轻载（＜30kg）：直径38-50mm，壁厚1.5mm
• 重载（＞100kg）：直径89mm+，壁厚≥2.0mm（抗变形关键）

​​Step 2. 环境定材质​​

Image Code
graph LR
A[Corrosive environment?] -->|Yes B[Stainless steel 304/316]
A -->|No C{needs to be non-slip?}
C -->|Yes D[Rubber-coated/PU rubber sleeve]
C -->|No E[Carbon steel galvanised]
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be

clogged

be

clogged

腐蚀环境？

不锈钢304/316

需防滑？

包胶/PU胶套

Carbon steel galvanised

​​Step 3. 布局验细节​​

​Long Distance Conveyance​：倾角按重量分级（轻载2-4°，重载5-7°）+ 缓冲段设计
​​动力传动​​：链轮辊禁用弹簧压入式安装（松动风险）


​The truth about the industry::输送线效率的60%由导辊选型决定——某汽车厂更换镀铬辊后，维修频次从月均5次降至0次。


​IV. Future trends: new materials subvert traditional perceptions​
​Ceramic-based composite guide rollers::

Advantage: high temperature resistance > 800 ℃, life expectancy 3 times longer, coefficient of friction ↓ 40%
Limitations: 5 times the cost of steel rolls, only suitable for high-end manufacturing

​Lightweight aluminium alloy::
New favourite in the rubber industry, 64% lighter than steel, improved corrosion resistance


​Selection of quick checklist (collection of spare)​



​Cargo characteristics​
​Recommendation Type​
​Material Solutions​
​cost index​




Food container (with vapour)
Straight roller
Stainless steel 304+PU rubber sleeve
★★★☆☆☆


E-commerce cartons (5-20kg)
Power Roller
Carbon steel galvanised
★★☆☆☆☆


Automotive parts (heavy duty)
accumulating roller
hard chrome
★★★★☆


Chemical raw materials (corrosion)
Tapered rollers
316L stainless steel
★★★★★




​Final Recommendations::Don't sacrifice adaptability for cost reduction - the maintenance cost of poor quality guide rollers can be up to 10 times the purchase price. When selecting a model, give priority to verifying the manufacturer's load test report, the actual measurement data is more reliable than the parameter table.