Services
Concrete Mixers & Agitators
New Builds, Repairs & Rebuilds
New agitator drums from 6m³ to 16m³, replacement barrels, full refurbishment, and agitator and hydraulic motor rebuilds. We get your mixer fleet off the bench and back pouring.
5.0 RATING
5.0 RATING
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6-16m³
Built & balanced in-house
Engineered, Not Just Welded
A mixer drum is the hardest-working component on a concrete truck. Get the spiral pitch wrong and you lose mix quality; get the balance wrong and you destroy bearings and burn fuel.
Built To Mix Clean & Run Smooth
At Kingpin, every drum starts as a 3D CAD model, so the blade geometry, shell thickness and discharge are right before a single plate is cut. We roll our own spiral blades, weld to documented procedures, then dynamic-balance and water-capacity test every unit. The result is a drum that mixes to spec, runs smooth and lasts.
Get a Free QuoteWhat We Do
From new drums to full rebuilds
New Agitator Drums
6m³ to 16m³, engineered and built from high-tensile, wear-resistant steel.
Replacement Barrels
Re-barrelling to get an existing truck back to work without a full rebuild.
Drum Refurbishment & Reconditioning
Replacing worn shells and blades, repairing cracks, re-balancing and re-coating.
Motor, Hydraulic & Pump Repairs
Drive motor rebuilds plus Danfoss, PMP, Rexroth and Eaton hydraulic systems supplied, fitted and repaired to keep your drum turning.
Roller Tracks & Support Frames
Replacement and repair of the running gear your drum rides on.
Chutes, Subframes & Spare Parts
Components to keep your fleet moving with minimal downtime.
Smart Controls & Precision Metering
Every drum, dialled in
We fit the famous brands the industry trusts, so operators get accurate, repeatable mixes load after load.
Agi-Drive Control System
We fit the trusted Agi-Drive control system. In-cab panel and wireless remote give the operator full command of the drum.
Netcorp & Manuflo Water Metering
We use famous brands you can rely on. Netcorp and Manuflo water meters dose water to the litre on every load.
Our Manufacturing Process
Built to OEM standard, step by step
Ten controlled stages take a drum from a 3D model to a tested, painted, export-ready unit - the same discipline the major OEMs run, under one roof.
- 01
Process Engineering & Design
A full 3D model is built before any fabrication begins, so the geometry is right the first time.
- 02
CNC Plasma Cutting
Precise, repeatable cutting of shell plates and components.
- 03
Spiral Blade Rolling
In-house rolling of every blade to the correct pitch and spiral.
- 04
Drum Assembly & Welding
Assembled and welded to documented welding procedures.
- 05
Dynamic Balance Testing
Balanced to protect bearings, cut vibration and save fuel.
- 06
Sand Blasting
Surface prepared back to bare metal for maximum coating adhesion.
- 07
Epoxy Primer & Paint
Protective coating system, finished in your colours.
- 08
Water Capacity Testing
Verified capacity so you know exactly what you are carrying.
- 09
Quality Inspection
Final sign-off against specification before it leaves the floor.
- 10
Export Packing
Securely packed for transport anywhere in the world.
Sizes & Specifications
Engineered to your requirement
- Capacities
- 6m³ to 16m³
- Materials
- High-tensile, wear-resistant steel
- Blade system
- In-house rolled spiral blades
- Hydraulics
- Danfoss, PMP, Rexroth and Eaton options
- Testing
- Dynamic balance and water capacity tested
- Finish
- Sandblast, epoxy primer and topcoat
Need a size or spec not listed? We engineer to your requirement.
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Our team is here to help answer any fabrication, repair, or concrete equipment questions you may have!
Service Areas
Kingpin Engineering serves these areas across South Australia, with fabrication and repair support for Adelaide metro and regional SA. Tap an area for a closer look.