行业组件数据 · 2026

配重块

Counterweight for rough terrain cranes providing stability during lifting operations by balancing load moments.

技术定义与适配语境
典型 配重块 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。

A counterweight is a critical structural component in rough terrain cranes designed to offset the overturning moment created by lifted loads. It consists of dense material blocks mounted on the rear of the crane's rotating superstructure, providing necessary mass to maintain stability within the crane's rated capacity chart. The system includes mounting brackets, connection hardware, and sometimes adjustable configurations for different working conditions.

组件规格

定义
A counterweight is a critical structural component in rough terrain cranes designed to offset the overturning moment created by lifted loads. It consists of dense material blocks mounted on the rear of the crane's rotating superstructure, providing necessary mass to maintain stability within the crane's rated capacity chart. The system includes mounting brackets, connection hardware, and sometimes adjustable configurations for different working conditions.
工作原理
Operates on the principle of moment balance where the counterweight creates a stabilizing moment opposite to the load moment. When the crane lifts a load, it creates an overturning force around the tipping axis. The counterweight's mass positioned at the rear generates a restoring moment, keeping the crane within its stability envelope. The effectiveness depends on the counterweight's mass, distance from the pivot point, and the crane's configuration.
材料
High-density cast iron (ASTM A48 Class 35B) or reinforced concrete with steel reinforcement (ASTM A615 Grade 60). Steel mounting brackets (ASTM A36) with corrosion-resistant coating (ISO 12944 C5-M).
Density
7,200-7,800 kg/m³
Weight Range
2,000-20,000 kg
Mounting Type
Bolted connection with shear pins
Safety Factor
Minimum 4:1
Surface Finish
Epoxy-coated or galvanized
Temperature Range
-40°C to +60°C
标准
ISO 4301ISO 4309DIN 15018ASME B30.5

行业分类与别名

配重块 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

Fatigue cracking in mounting brackets->Counterweight detachment during operation->Regular ultrasonic testing of welds, replacement of brackets per manufacturer schedule, torque verification of connection bolts
Corrosion in coastal environments->Reduced structural integrity and weight loss->Application of marine-grade coatings, regular inspection for corrosion, cathodic protection systems

工业生态与工程逻辑

0
Structural failure under dynamic loads
1
Improper installation causing imbalance
2
Corrosion in harsh environments
3
Inadequate maintenance leading to connection failure

合规与检测

tolerance
±2% of specified weight, ±3mm dimensional tolerance on mounting interfaces
test method
Load testing per ISO 4309, non-destructive testing of welds, weight verification using calibrated scales

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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

How is counterweight weight determined for rough terrain cranes?

Counterweight weight is calculated based on the crane's maximum lifting capacity, boom length, working radius, and stability requirements per ISO 4301 standards. Manufacturers use load moment indicators and stability calculations to determine optimal counterweight mass.

Can counterweights be adjusted during operation?

Most rough terrain crane counterweights are fixed installations, but some models feature hydraulic or mechanical adjustment systems that allow operators to modify counterweight position or add/remove sections for different working conditions.

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