KOMATSU Connecting Arm Pin Boom Pin Bucket Pin PC1250 21N-70-33142 for

Product Specification

KOMATSU Connecting Arm Pin Boom Pin Bucket Pin PC1250

21N-70-33142 for Engineering Machinery Original and Authentic

Product Description

Functions of the Excavator Bucket Pin:
1. Pivoting Connection:
The bucket pin acts as a hinge, connecting the excavator's arm (dipper stick) to the bucket. It allows the bucket to rotate smoothly, enabling digging, scooping, and dumping motions.
2. Load Bearing:
It bears significant shear forces and bending stresses during excavation, especially when the bucket is filled with heavy material (e.g., soil, rocks, or debris).
3. Articulation for Precision Work:
By allowing the bucket to pivot, the pin ensures precise control over digging depth, angle, and material handling, improving operational efficiency.
4. Durability & Wear Resistance:
High-quality hardened steel pins resist wear from friction and abrasion, ensuring long-term reliability even under harsh working conditions.
5. Easy Replacement (Maintenance):
Though built for durability, bucket pins are designed to be replaceable when worn out, minimizing downtime and maintenance costs.
Importance in Excavator Performance:
A well-functioning bucket pin ensures smooth bucket movement, reducing stress on hydraulic cylinders and other linkage components.
Worn or damaged pins can lead to loose bucket attachment, inefficient digging, and even failure of the linkage system.

Company Profile

    Huilian Machinery Equipment Co., Ltd (EB Seals) is a professional import dealer engaged in comprehensive hydraulic hammer parts in Guangzhou for more than 15 years. Adhere to original and OEM import quality.
    Our company mainly supply the construction machinery parts of the excavator parts, such as the final drive travel motor and parts,hydraulic pump and parts,undercarriage parts(track link,track roller,sprocket,upper roller etc), engine parts,excavator operator cabin etc.Huilian is a business that focuses on the sales of various types of seal kit, diaphragm, piston, chisel, wear bush, rod pin, through bolt, side bolt, control valve assy, spare valve, cylinder block, accumulator and other commonly used parts of hydraulic hammer.
    Specializes in:
--Excavator spare parts
--Hydraulic breaker accessories

    Huilian Machine is continuously seeking the chances to meet all the friends both from home and abroad for win-win cooperation.
    And we believe that quality parts will take us to a further place. Let’s build a better tomorrow, together!

Why choose us?

FAQ

Q1. How many days for the delivery time ?
It is about 3-7 working days after the order confirmation.
Q2. What kind of payments you accept?
Now we accept T/T, L/C or Western Union, other terms also could be negotiated, Recommended Trade Assurance to guarantee buyer's property.
Q3. Are you able to manufacturing products according to customer's design?
Sure, we have made many special orders from oversea for 13 years since 2010. So we have enough ability to deal with any cases. OEM certificate is available to provided.
Q4. What's your advantages in the machinery manufacturing industry?
Fast delivery time, High quality products, Best customer service, Adopting the latest production technology.
Q5. Which countries have you been exported recently?
Canada, Australia, Peru, Egypt, Brazil, Mexico, South Africa, etc.
Q6. Are you sure that your product will fit my hydraulic breaker?
We have different brand hydraulic breaker parts. Show me your model number, and we can give you best match products.
Q7. How about the packing of the goods?
Standard export package, wood cases, or as customers' demands.