Skip to main content

Concrete Mixer Semi Trailer

12.7 m³ & 14.7 m³ | Two volumes. One uninterrupted workflow.

A singular mixer philosophy — built to keep every shift seamless, calm, and productive. Less friction. More rhythm. Reliable output you can trust from the first pour to the last.

Highlights

Strong Chassis is ready for Off-Road

Premium engineering and design

Speed and Turning Side Management

Manual or Electrical buttons are ready to serve user.

Speed and Turning Side Management

Manual or Electrical buttons are ready to serve user.

Ingenious Engineering

Feel the engineering on every point of mixer trailer

common.swipeToBrowse

common.keyFeatures

Capacity & Mixing

12.7 m³

Agile Cycles — Mechanical Jack

Nominal 12.7 m³ | Geometrical 19.930 m³ | Capacity in water: 13.040 m³ | Drum speed 0–14 rev/min | Fill: 15"/m³ | Unload: 15"–40"/m³ | Weight empty: 5,000 kg | 180° swivelling chute with mechanical jack

14.7 m³

Maximum Output — Hydraulic Jack

Nominal 14.7 m³ | Geometrical 22.800 m³ | Capacity in water: 14.316 m³ | Drum speed 0–14 rev/min | Fill: 15"/m³ | Unload: 14"–40"/m³ | Weight empty: 9,700 kg | 180° swivelling chute with hydraulic jack for lifting

Drum & Wear Protection

Material

30MnB5 Anti-Wear Steel

Drum walls and mixing blades: 4 mm 30MnB5 steel (HB 200/220) for maximum abrasion resistance.

Rollers

2× Ø280 mm Rollers

Heavy-duty drum support rollers for smooth, reliable rotation under load.

Discharge & Site Workflow

12.7 m³

Mechanical Jack Discharge

180° swivelling chute + support + mechanical jack. Anti-wear plate on discharging hopper. 2× inspection manholes + ladder.

14.7 m³

Hydraulic Jack Discharge

180° swivelling chute + support + hydraulic jack for lifting. Anti-wear plate on discharging hopper. 2× inspection manholes + ladder.

Extensions

Polystone Chute Extensions

2 lightweight Polystone extension chutes with holders for extended reach on both models.

Water & Additives

Water

600L Pressurized Tank

Pressurized steel water tank with level indication for consistent mix management — standard on both models.

Additives

Configurable Additive Tank

40L additive tank standard on 14.7 m³. Available by specification on 12.7 m³.

common.closerLook

Loading Chute

Galvanized Pressurized Water Tank

Auxiliary Engine

Hardox Drum

SAF Axles

BPW Axles

Model Range

Two volumes. One standard.

12.7 m³ Mixer

The mischievous child of the city with it's compact volume and short chassis.

Black Edition

Aerial View

Side Profile

On the Road

Discharge System

Right Profile

Green Fleet

Black Fleet

14.7 m³ Mixer

Maximum volume. Maximum output. Ready for off-road on your big construction projects.

Side Profile

Dramatic View

Left Side

Ireland Spec

In the Field

STU Motor

Drone View

Options & Equipment

Not everything is 'nice' — some upgrades are pure practicality.

Standard Equipments

  • • 40 Liter Additive Tank | Available by specification on the 12.7 m³ model; standard 40L on the 14.7 m³.
  • • 600 Liter Water Tank
  • • Galvanized Protection | Extended corrosion resistance — for harsh climates and long-term fleet value.
  • • Fixed Axles and First axle Liftable
  • • Manual handle for drum speed and turning way management
  • • Rear Slump Meter | Available by specification — mounted near the water counter, rear-facing.
  • • Aspöck Brand Bulb Light Set

User Friendly Options

  • • Spare Tire + Holder | For uptime continuity on long-haul and remote jobsite routes.
  • • Night LED Work Lights | For safe, visible operation in early morning dispatch and low-light conditions.
  • • Galvanized and Pressurized Water Tank
  • • Aluminium and Galvanized Accessories
  • • Automatic Greasing System | Configurable by specification for high-frequency operation cycles.
  • • Self Sttering Axles | Configurable by specification for improved manoeuvrability.
  • • In-Cabin Remote Control | Configurable by specification — adds operator comfort and speed in high-frequency dispatch.
  • • SAF or BPW Brand Axles
  • • Aspöck Brand LED Light Set
  • • Loose Wheel Lug Nut Indicators

common.inTheField

Diffferent Sizes, Different Options.

BumperYou can arrange the ground clearance manually.
Volume12,7m3 or 14,7m3 Drums
Slump MeterDifferent applications require different cement densities.

common.globalReach

Trusted by operators all over Europe.

Ready to Order Your Mixer?

Transparent pricing. No hidden costs. Just a reliable mixer built exactly to your specifications.

common.requestQuote

common.techSpecs

12.7 m³ Model

Nominal Capacity

12.7 m³

Geometrical Volume

19.930 m³

Capacity in Water

13.040 m³

Drum Speed

0–14 rev/min

Filling Capacity

15"/m³

Unloading Capacity

15"–40"/m³ (depending on concrete slump)

Total Weight (empty)

5,000 kg

Rollers

2 pcs, Ø280 mm

Width Reference

2,500 mm

Overall Length

7,730 mm

Overall Width

2,500 mm

Overall Height

2,830 mm

Drum Tilt Angle (α)

9.5°

Height to Top (Ht)

2,827 mm

Height to Sub-frame (Hs)

1,773 mm

Total Length (Lt)

7,727 mm

Drum Axis Length (La)

6,004 mm

Rear Overhang (Lp)

1,184 mm

Drum Material

30MnB5 anti-wear steel, 4 mm (HB 200/220)

Discharge

180° swivelling chute + mechanical jack

14.7 m³ Model

Nominal Capacity

14.7 m³ (maximum)

Geometrical Volume

22.800 m³

Capacity in Water

14.316 m³

Drum Speed

0–14 rev/min

Filling Capacity

15"/m³

Unloading Capacity

14"–40"/m³ (depending on concrete slump)

Total Weight (empty)

9,700 kg

Rollers

2 pcs, Ø280 mm

Width Reference

2,500 mm

Overall Width

2,500 mm

Drum Tilt Angle (α)

9.5°

Height to Top (Ht)

2,827 mm

Height to Sub-frame (Hs)

1,773 mm

Total Length (Lt)

7,727 mm

Drum Axis Length (La)

6,004 mm

Rear Overhang (Lp)

1,184 mm

Drum Material

30MnB5 anti-wear steel, 4 mm

Discharge

180° swivelling chute + hydraulic jack for lifting

Running Gear

Axles

3× 12 ton (SAF / BPW / TRAX — configurable)

Suspension

Air suspension

Braking System

2S-2M Wabco or Knorr EBS

Brake Chambers

T24/30 emergency + 30/30 service (spec-defined)

Brake Type

Disc or drum configurations (by specification)

King Pin

2" options available (by specification)

Water Tank

600L pressurized steel

Concrete Mixer Semi Trailer (12.7 m³ / 14.7 m³)

1) Two volumes. One uninterrupted workflow.

A singular mixer philosophy—built to keep every shift seamless, calm, and productive.

Less friction. More rhythm. Reliable output you can trust from the first pour to the last.

________________________________________

2) A most deliberate evolution of everyday mixing.

Every refinement serves one idea: absolute unity between chassis, drum, hydraulics, and discharge.

So control feels intuitive—and performance feels effortless.

________________________________________

3) Choose your volume.

Pick the capacity that matches your route density and batching tempo—without changing the STU build approach.

12.7 m³ — agile cycles, tight routes

14.7 m³ — maximum output per trip

________________________________________

4) Capacity & Mixing

--12.7 m³--

• Nominal capacity: 12.7 m³

• Geometrical volume: 19.930 m³

• Capacity in water: 13.040 m³

• Drum speed: 0–14 rev/min

• Filling capacity: 15"/m³

• Unloading capacity: 15"–40"/m³ (depending on concrete slump)

• Total weight (empty): 5,000 kg

• Rollers: 2 pcs, Ø280 mm

• Width reference: 2,500 mm

--14.7 m³--

• Nominal capacity: 14.7 m³ (maximum)

• Geometrical volume: 22.800 m³

• Capacity in water: 14.316 m³

• Drum speed: 0–14 rev/min

• Filling capacity: 15"/m³

• Unloading capacity: 14"–40"/m³ (depending on concrete slump)

• Total weight (empty): 9,700 kg

• Rollers: 2 pcs, Ø280 mm

• Width reference: 2,500 mm

________________________________________

5) Drum & Wear Protection

Abrasion is real. Your drum should be ready for it—day after day.

--12.7 m³--

• Drum walls: 30MnB5 anti-wear steel, 4 mm (HB 200/220)

• Mixing blades: 30MnB5 anti-wear steel, 4 mm (HB 200/220)

--14.7 m³--

• Drum walls: 30MnB5 anti-wear steel, 4 mm

• Mixing blades: 30MnB5 anti-wear steel, 4 mm

________________________________________

6) Dimensions

Same clean layout logic—scaled by volume and configuration.

--12.7 m³--

• Overall length: 7,730 mm

• Overall width: 2,500 mm

• Overall height: 2,830 mm

• α: 9.5° | Ht: 2,827 mm | Hs: 1,773 mm | Lt: 7,727 mm | La: 6,004 mm | Lp: 1,184 mm

--14.7 m³--

• Overall length: (spec-defined by configuration)

• Overall width: 2,500 mm

• Overall height: (spec-defined by configuration)

• α: 9.5° | Ht: 2,827 mm | Hs: 1,773 mm | Lt: 7,727 mm | La: 6,004 mm | Lp: 1,184 mm

________________________________________

7) Discharge & Site Workflow

Designed to keep discharge controlled, clean, and confident—especially under real site pressure.

--12.7 m³--

• 180° swivelling chute + support + mechanical jack

• 2 Polystone lightweight extension chutes with holders

• Anti-wear plate on discharging hopper

• 2× inspection manhole + inspection ladder

• Rear slump meter near the water counter (rear-facing): available by spec

--14.7 m³--

• 180° swivelling discharging chute + support + hydraulic jack for lifting

• 2 Polystone lightweight extension chutes with holders

• Anti-wear plate on discharging hopper

• 2× inspection manhole + inspection ladder

• Rear slump meter near the water counter (rear-facing)

________________________________________

8) Water & Additives

Because consistency isn’t a guess—it’s a system.

--12.7 m³--

• 600 L pressurized steel water tank

• Additive tank: available by spec

--14.7 m³--

• 600 L pressurized steel water tank

• Additive tank: 40 L

________________________________________

9) Controls

Control should feel clear, immediate, and professional—on every job.

--12.7 m³--

• Rear-side operation via control box

• In-cabin control: available by spec

--14.7 m³--

• In-cabin control buttons + rear-side electrical/manual control box

________________________________________

10) Running Gear & Safety Systems (SAF / BPW / TRAX)

Configured for your market, your standards, your fleet preference—without compromising the foundation.

• Axles (configurable): SAF / BPW / TRAX — 3×12 ton

• Suspension: Air suspension

• Braking: 2S-2M Wabco or Knorr EBS

• Brake chambers (spec-defined): T24/30 emergency + 30/30 service

• Brakes (by spec): Disc or drum configurations available

• King pin (by spec): 2" options available

________________________________________

Apple-Style Scroll Blocks — Concrete Mixer Semi Trailer (12.7 m³ / 14.7 m³)

(15 blocks — each includes 1 short headline + 2–3 lines + 1 FAQ Q&A)

________________________________________

1) Built to keep concrete alive.

Transport concrete from the batching plant to the jobsite while the drum continuously agitates the mix.

So cement, sand, and aggregates stay evenly distributed—without early setting.

Q: What is the primary use case for an STU concrete mixer semi trailer?

A: It transports ready-mix concrete while keeping the mix continuously agitated so it doesn’t start setting and remains homogeneous.

________________________________________

2) Rhythm over rush.

Smooth transport is not only speed—it’s consistency.

A stable mixing cycle keeps your output predictable from load to discharge.

Q: Why is continuous agitation important during transport?

A: It helps prevent the concrete from starting to set and keeps all components evenly mixed until discharge.

________________________________________

3) Drum speed, matched to the job.

Unloading isn’t one-size-fits-all.

You adjust RPM to how you’re placing concrete—open ground, tight zones, or a concrete pump.

Q: What drum RPM do you recommend for mixing vs discharge?

A: It depends on unloading method; for pump feeding, RPM should be synchronized with pump speed for controlled flow.

________________________________________

4) Pump-friendly, site-ready.

When feeding a pump, harmony matters.

A synchronized discharge protects workflow and helps avoid messy overfeed situations.

Q: How should RPM be set when unloading into a concrete pump?

A: Operators should align drum speed with the pump’s receiving speed for a clean, controlled pour.

________________________________________

5) 14.7 m³ discharge timeline.

Maximum capacity should still feel manageable.

With correct site setup and mix consistency, discharge stays efficient.

Q: What is the typical unloading time for the 14.7 m³ model?

A: Approximately 20–30 minutes at maximum drum speed, depending on concrete intensity and site conditions.

________________________________________

6) Cleaning is capacity.

A clean drum is a productive drum.

Cleaning protects lifecycle, preserves true usable m³, and prevents hardened build-up.

Q: What cleaning routine do you recommend after each pour?

A: Clean with water and suitable additive chemicals to prevent hardened concrete inside the drum.

________________________________________

7) The #1 mistake to avoid.

Concrete residue steals capacity—quietly.

The longer it stays, the harder it becomes to remove.

Q: What happens if the drum isn’t cleaned properly?

A: Hardened concrete inside reduces effective unloading m³ and accelerates wear.

________________________________________

8) Wear parts—defined clearly.

Construction work is abrasive by nature.

That’s why wear components are treated as a known, manageable reality.

Q: Which parts are considered wear parts?

A: The drum, mixing blades, and loading/unloading chutes.

________________________________________

9) Warranty stance, practical support.

We keep it straightforward.

Manufacturing-related issues are covered early—then parts remain available long-term.

Q: What is your warranty approach for wear parts?

A: Wear parts are covered for manufacturing-related issues in the first year; after that, spare parts can be ordered from the producer.

________________________________________

10) Hydraulics designed for real tempo.

These trailers are built to work all day.

We apply clear maintenance stickers and design for demanding duty cycles.

Q: What do you recommend for hydraulic system maintenance in harsh use?

A: Follow the maintenance labels; the system is built for intensive daily loading/unloading cycles.

________________________________________

11) Proof in the field.

Real-world operation matters.

Customer feedback shows intense use patterns staying consistent over time.

Q: How intensive can daily operation be?

A: Customers reported up to 50 loading/unloading cycles in 24 hours, sustained over years.

________________________________________

12) Two core volumes. More by request.

Most fleets choose a proven sweet spot.

And for specialized markets, additional volumes are possible.

Q: Do you offer only 12.7 m³ and 14.7 m³?

A: We mainly offer 12.7 m³ and 14.7 m³, and can also produce 9, 10, 12, and 15 m³ on request.

________________________________________

13) Choosing volume is a legal + logistic decision.

Payload rules and route patterns decide more than preference.

The right volume is the one that stays compliant and keeps your cycles profitable.

Q: How should buyers choose between 12.7 m³ and 14.7 m³?

A: Based on local weight rules and intended operation—choose what keeps you compliant and efficient.

________________________________________

14) “Capacity in water” — what it tells you.

It’s a reference that helps compare drum behavior.

Especially useful across climates where workability changes.

Q: What does “capacity in water” mean?

A: It indicates how much water can fill the drum to the specified maximum level, helping users understand drum geometry and behavior.

________________________________________

15) Water & additives—controlled consistency.

Consistency is a system: water management + user formulas + local rules.

That’s why we design for clarity and configuration.

Q: Is the water tank pressurized, and how is it monitored?

A: Yes—pressurized water tank with level indication; additive handling can be configured depending on formulas and country rules.

________________________________________

16) Control: standard vs optional comfort.

Standard control is robust and direct.

Optional in-cabin control adds comfort and speed—especially in high-frequency dispatch.

Q: Controls: what is STANDARD vs OPTIONAL?

A: Standard: rear control. Optional: in-cabin control; remote control can be configured by specification.

________________________________________

17) Running gear—choose what your market supports.

Service network matters.

Select SAF / BPW / TRAX based on availability, familiarity, and parts access.

Q: Can customers choose SAF / BPW / TRAX?

A: Yes—customers choose based on their market’s spare parts access, or source directly via STU support.

________________________________________

18) Export & registration—documents included.

Smooth delivery includes paperwork readiness.

We ship export documents and the original COC for registration.

Q: What compliance/documentation do you provide?

A: Commercial invoice, packing list, customs declarations, ATR/EUR1 where applicable, and the original COC for registration.

________________________________________

19) After-sales—parts continuity.

Uptime is long-term.

That’s why parts planning is built into how we support fleets.

Q: How long are spare parts available?

A: Installed-equipment parts are available from our stock for 5 years; equipment producers keep parts for up to 10 years.

________________________________________

20) Options buyers actually ask for.

Not everything is “nice”—some upgrades are pure practicality.

These options protect uptime, safety, and long-term value.

Q: What are the most requested options and why?

A: Spare tire + holder, night LED work lights, and galvanized protection—for uptime, safety, and durability. Automatic greasing, hydraulic steering, and remote control can be configured by specification.

________________________________________

nav.legal.copyrightnav.legal.privacy|nav.legal.terms|nav.legal.sitemap
nav.legal.country
Concrete Mixer | STU TRAILERS®