207-70-34221 2077034221 Pin Excavator Spare Parts For KOMATSU PC220 PC240 PC250

• 207-70-34221 2077034221 Pin Excavator Spare Parts For KOMATSU PC220 PC240 PC250

• Specification

• Function 

1. Link Connection and Chain Formation
The pin fits through precisely aligned holes in two adjacent track links, effectively joining them together to form a continuous track chain. This connection is essential for transferring the driving force from the sprockets to the ground, allowing the machine to move forward, backward, or turn. Without a reliable pin, the track segments would separate, rendering the equipment immobile.

2. Load Distribution and Wear Resistance
Designed to withstand high tensile and shear forces, the pin evenly distributes the load across the track links, minimizing stress concentrations and reducing the risk of premature wear or failure. It is typically made from high-carbon or alloy steel, often with heat treatment to enhance hardness and durability. This ensures that the pin can endure the constant bending, torsion, and impact experienced during heavy-duty operations.

3. Articulation and Flexibility
While providing a secure connection, the pin also allows for a degree of articulation between the track links. This flexibility is crucial for the track to conform to uneven terrain, such as rocks or slopes, without losing contact with the ground. The pin's design enables smooth bending and rotation, which helps maintain traction and reduces the likelihood of derailment.

• Compatible models

• More pin parts supplied to KOMATSU machine

• Catalog parts list

• We could supply the following spare parts

1 Hydraulic parts: hydraulic pump, main valve, hydraulic cylinder, final drive, travel motor, swing machinery, swing motor etc.

2 Engine parts: engine ass’y, piston, piston ring, cylinder block, cylinder head, crankshaft, turbocharger, fuel injection pump, starting motor and alternator etc.

3 Undercarriage part: Track roller, Carrier roller, Track Link, Track shoe, Sprocket, Idler and Idler cushion etc.

4 Cab parts: operator’s cab, wiring harness, monitor, controller, seat, door etc.

5 Cooling parts: Radiator, air conditioner, compressor, after cooler etc.

6 Other parts: Service kit, swing circle, engine hood, swing joint, fuel tank, filter, boom, arm, bucket etc.

• Advantage

1. Offer Top quality & competitive products

2. Support 12-month warranty

3. 100% tested before shipping

4. Delivery in time

5. A wide range of Oil Pressure Sensor, Fuel Tank Level Sensor, Temperature Sensor, Speed Sensor for excavator 

6. More than 15 years production and 11 years foreign trade experience

7. Professional QC team

8. Best sales team, 24 hours service

• Packing and Shipping

Packing Details :

inner packing : plastic film for wrapping

external packing : wooden

Shipping :

within 3 days after received the payment , by air or by express or by sea on the basis of the

quantity and emergency circumstances.

1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier companies we are cooperated,

2. By Air: Delivery from the Guangzhou air port to customer's destination city air port.

3. By Sea: Delivery from the Huangpu port .

• Product Warranty

1. Warranty Period: 3 Months' warranty from the date of arrival. Longer period of 6 months' warranty could be offered with higher price level.

2. Warranty type: replacement of the parts that have quality problem.

3. Warranty is not valid for below s

* Cutomer give wrong information about the order

* Force Majeure

* Wrong installation and operation

* Rust because of wrong stock & maintenance