A concrete pump rocker arm is a vital component in modern concrete pumping systems, responsible for transferring motion and ensuring smooth, efficient concrete delivery from the pump to the placing boom. Whether used in high-rise buildings, bridges, or large-scale infrastructure projects, the quality and durability of the rocker arm directly influence pumping performance.
Concrete Pump Rocker Arm
Engineered from premium materials for maximum durability and efficiency. Built to withstand continuous heavy-duty operations, it is available in two main types:
- Regular Type – Standard design for most pumping applications.
- Reverse Type – Designed for specific pump configurations where motion direction needs to be altered.
Other Common Concrete Pump Rocker Arm Types
Schwing Concrete Pump Rocker Arm
The Schwing concrete pump rocker arm converts the linear motion of the pump’s pistons into a circular motion, moving concrete back and forth within the pumping chambers. Known for reliability and precision, Schwing rocker arms, when paired with regular maintenance, can deliver years of high-performance service.
SANY Concrete Pump Rocker Arm
The SANY concrete pump rocker arm links the hydraulic cylinder to the pumping system, ensuring a consistent and smooth concrete flow. SANY’s product range covers both mobile and stationary concrete pumps, making it versatile for various construction projects.
Putzmeister S5 Concrete Pump Rocker Arm
The Putzmeister S5 rocker arm is commonly used for demanding projects like high-rise construction, tunnels, and bridges. Featuring a 5-inch diameter cylinder, it is ideal for high-output applications. Manufactured from robust materials, it offers a long service life and reliable performance.
Specifications of Putzmeister Concrete Pump Rocker Arm
| Specification | Details |
|---|---|
| Material | High-strength alloy steel (Q345B) with excellent impact resistance, tensile strength, and bending strength. |
| Compatibility | Connects directly or indirectly to the pump master cylinder via mobile or stationary brackets. |
| Length | Varies by model – e.g., S5 model offers lengths of 1206 mm or 1302 mm. |
| Weight | Higher than many alternatives due to solid, heavy-duty construction. |
Applications in the Construction Industry
Concrete pump rocker arms are used across multiple industry scenarios:
- Bridge Construction – Enables concrete placement over long spans or at great heights from base supports.
- Building Projects – Allows fast delivery of concrete to higher floors or hard-to-reach areas.
- Infrastructure Works – Widely used in road construction, hydropower dams, and tunnel works (including shotcrete applications).
- Energy Sector – Plays a role in oil, gas, and offshore drilling projects where concrete placement is required for structural support.
Q&A – Common Buyer Questions
Q1: What types of concrete pump rocker arms are available?
A: Options include Putzmeister, Schwing, CIFA, XCMG, and SANY rocker arms, each designed for specific pump models and made from high-strength steel or other durable alloys.
Q2: What is the function of a concrete pump rocker arm?
A: It transfers hydraulic energy from the pump to the cylinder, enabling the controlled movement of concrete through pipelines and out of the delivery nozzle.
Q3: What are the signs of a worn rocker arm?
A: Reduced pumping efficiency, slower motion, unusual noises, sudden pumping stoppages, or hydraulic leaks can indicate wear.
Q4: What happens if a worn rocker arm is used?
A: It can cause inconsistent concrete flow, increased wear on other pump parts, potential hydraulic failure, and costly downtime.ficiency will be reduced, and there will be a strain on the hydraulic system. In severe cases, the concrete pump may break down completely, and this will initiate expensive repair costs. Regular maintenance is always important, and this will help increase the lifespan of the concrete pump and its parts, including the rocker arm.
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