Equipment • Volumetric Mixers

425 S Volumetric Concrete Mixer

The 425 S is ideal for contractors needing precise concrete production without over-ordering or returned material.

Starmix 425 S volumetric concrete mixer

Built for real job site performance. Materials are stored separately and measured precisely, giving crews control over mix quality, quantity, and cost.

Tip: Use “On-site mixing” as a technical benefit in the page (not as the main keyword).

What this model delivers

Key Highlights

On-Demand Production

Produce concrete as needed, reducing over-ordering and minimizing waste on site.

Precise Mix Control

Adjust mix designs in real time to match job conditions and specs.

Job Site Reliability

Engineered for demanding U.S. applications and continuous discharge workflows.

Sales-Ready CTA

Clear conversion path: specifications → applications → request a quote.

Specifications

425 S Technical Overview

ConfigurationTruck-mounted volumetric mixer (replace if different)
Output Capacity5.0 yd³/hr
Aggregate Bins135 cu ft
Cement Storage70 cu ft
Water System350 gal
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Technology (technical section)

On-Site Concrete Production Benefits

  • Mix on demand to avoid returned concrete
  • Reduce material waste compared to traditional ready-mix delivery
  • Maintain consistent mix quality with precise volumetric measurement
  • Adapt mix designs quickly for varying job site requirements

Applications

Where 425 S Performs Best

  • Concrete delivery and multiple short pours
  • Municipal and utility trench backfill
  • Infrastructure projects with strict scheduling
  • Road repair and paving patch work

Media

425 S Photos & Walkthrough

Downloads

Technical Documents

Technical Sheet (PDF)

Core specs, capacities, and configuration overview for the 425S.

Download PDF

Operator Guide (PDF)

Basic operation, safety, and daily inspection checklist.

Download PDF

Maintenance Schedule (PDF)

Recommended intervals for lubrication, calibration, and wear items.

Download PDF

Request Pricing

Get lead time, configuration options, and quote support.

Request a Quote

FAQ

425 S Questions Buyers Ask

Is the 425 S a ready-mix truck?

No. The 425 S is a volumetric system that stores materials separately and mixes continuously during discharge.

Can operators adjust mix designs on site?

Yes—volumetric measurement allows controlled adjustments to meet job specs and conditions.

Do you offer training and support?

Yes. Link this section to Service & Support → Operator Training and Technical Support.

How do I get pricing?

Use the Request a Quote form to receive configuration options and lead time details.

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