行业组件数据 · 2026

挖掘机斗杆

The dipper handle, also known as the crowd rack, is a critical structural component in excavators that connects the boom to the bucket, enabling precise digging and material handling operations.

技术定义与适配语境
典型 挖掘机斗杆 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 dipper handle (crowd rack) is a forged or cast steel structural member in hydraulic excavators that transmits force from the boom to the bucket through hydraulic cylinders. It functions as the intermediate arm in the kinematic chain, providing the necessary leverage and movement range for digging, lifting, and dumping operations. Its design incorporates mounting points for bucket linkage, hydraulic cylinder attachments, and wear-resistant surfaces for prolonged service life under high stress conditions.

组件规格

定义
The dipper handle (crowd rack) is a forged or cast steel structural member in hydraulic excavators that transmits force from the boom to the bucket through hydraulic cylinders. It functions as the intermediate arm in the kinematic chain, providing the necessary leverage and movement range for digging, lifting, and dumping operations. Its design incorporates mounting points for bucket linkage, hydraulic cylinder attachments, and wear-resistant surfaces for prolonged service life under high stress conditions.
工作原理
The dipper handle operates on lever mechanics and hydraulic force transmission. Hydraulic cylinders attached to the handle extend or retract to change the angle between the boom and bucket, controlling digging depth and bucket position. The handle's geometry determines the mechanical advantage and movement trajectory, while its structural integrity ensures force distribution without deformation under operational loads.
材料
High-strength low-alloy steel (HSLA) grades such as ASTM A572 or equivalentwith yield strength of 345-550 MPa. Forged construction preferred for critical stress areaswith heat treatment to achieve hardness of 200-300 HB. Wear plates of AR400 steel may be welded at contact points.
Length Range
2.5-8 meters
Pin Diameter
80-200 mm
Service Life
10,000-20,000 hours
Wall Thickness
25-50 mm
Weight Capacity
15-50 tons
Operating Pressure
25-35 MPa
标准
ISO 9001ISO 10218DIN 15018ISO 3457

行业分类与别名

挖掘机斗杆 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

Cyclic loading exceeding fatigue limits->Crack propagation leading to structural fracture->Implement regular non-destructive testing, use fatigue-resistant materials, and follow load cycle limitations
Inadequate lubrication of pivot points->Increased friction, pin wear, and potential seizure->Establish preventive maintenance schedule with proper greasing intervals and use high-temperature lubricants
Exposure to corrosive environments->Material degradation and reduced load capacity->Apply protective coatings, implement regular cleaning, and use corrosion-resistant materials in critical areas

工业生态与工程逻辑

0
Structural fatigue failure
1
Pin wear and seizure
2
Corrosion in harsh environments
3
Overload deformation
4
Improper maintenance leading to catastrophic failure

合规与检测

tolerance
±2 mm for pin hole alignment, ±1° for angular positioning, surface finish Ra 3.2 for bearing surfaces
test method
Ultrasonic testing for internal flaws, magnetic particle inspection for surface cracks, load testing to 150% of rated capacity

制造该组件的工厂

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 difference between a dipper handle and a boom?

The boom is the primary lifting arm attached to the excavator's house, while the dipper handle (crowd rack) connects the boom to the bucket. The handle provides the secondary movement for precise bucket positioning and digging force application.

How often should dipper handles be inspected?

Visual inspections should be conducted daily for cracks or deformation. Detailed inspections including ultrasonic testing for internal flaws should be performed every 500 operating hours or according to manufacturer recommendations.

Can dipper handles be repaired if cracked?

Minor cracks in non-critical areas can be repaired using qualified welding procedures with pre-heat and post-weld heat treatment. Major cracks or damage in high-stress zones typically require component replacement to maintain structural integrity.

我可以直接联系工厂吗?

CNFX 是开放目录,不是交易平台或采购代理。工厂资料和表单用于帮助你准备直接沟通。

CNFX Industrial Component Index · 机械和设备制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

请求制造能力信息: 挖掘机斗杆

说明目标数量、应用场景、交期和关键技术要求,用于准备 RFQ 或供应商评估。

谢谢,信息已发送。
谢谢,信息已收到。

需要制造 挖掘机斗杆?

对比具备该组件加工或装配能力的制造商资料。

创建制造商档案 联系我们
上一个组件
按钮帽
下一个组件
挖斗臂
URN:CNFX:ME:UNIT:CROWD_RACK