The Multiquip EMA501X8031 Spring Block ST30 is a genuine OEM component designed for the ST30 swing tube concrete pump. As a factory-sourced part, it meets the exact specifications required by Multiquip for this pump family, ensuring consistent fit and correct mechanical function. This part is confirmed for use on ST30 series equipment and is sold by DHS Equipment as an authorized Multiquip replacement.
Key Features
- Genuine OEM Spring Tension Integrity — Manufactured to Multiquip's original spring rate and block dimensions, maintaining the mechanical tension critical to correct swing tube operation.
- Direct ST30 Fitment — Engineered specifically for the ST30 swing tube concrete pump, slotting into the existing spring block position without alteration.
- ST30 Series Compatibility — Confirmed fitment for ST30 concrete pump models; consult your parts manual to verify position before ordering.
- Sustained Pump Cycle Performance — A properly functioning spring block maintains consistent cycling pressure in the swing tube system; a worn or collapsed block leads to erratic or failed tube movement and concrete delivery disruption.
- Concrete Pump Application Grade — Built to withstand the repetitive mechanical stress and abrasive environment typical of high-output concrete pumping operations.
The spring block in a swing tube concrete pump serves as the tensioning element that holds the swing tube firmly against the wear ring during each pumping cycle. This contact seal is what allows concrete to be pushed through the delivery line under pressure. When the spring block weakens, cracks, or loses its preload, the swing tube can gap away from the wear ring, causing pressure loss, backflow, and uneven concrete output. Replacing a worn spring block promptly restores the sealing force that keeps the pump cycling cleanly and efficiently.
Have questions about fitment or need help confirming this is the correct part for your ST30? Contact the DHS Equipment parts team for assistance.
Part Details
| Part Number | EMA501X8031 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Spring Block ST30 |
Compatibility & Fitment
| Name | Model |
|---|---|
| ST30 | ST30 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
