GRC125 Combination Mixer

The GRC125 Combination Mixer by Power-Sprays seamlessly produces both spray-grade slurry and premix GRC. With a 65 L capacity, a powerful 9.2 kW motor, and variable-speed control, it offers high-shear mixing, exceptional dust control, and easy maintenance—ensuring consistent, professional-quality GRC in every batch.

The GRC125 Combination Mixer from Power-Sprays is the first mixer specifically designed to produce both spray-grade GRC slurry and premix GRC—without compromise. Its innovative helical blade technology, robust 9.2 kW motor, and variable-speed control (0–1400 rpm) make it ideal for high-shear mixing of cement slurries at fast speeds and careful blending of fibres at slower speeds. Featuring a 65 L capacity mixing vessel that easily accommodates up to 125 kg of material, the GRC125 is perfect for everything from smaller batches to full-scale production. Whether you choose the bucket trolley, floor-mounted, or tilting drum variant, this flexible system reduces dust, optimises workflow, and improves final product consistency.

Key Features & Benefits

  1. High-Shear Mixing & Fibre Integration
    • Variable Speed (0–1430 rpm at 50 Hz): Allows precision mixing of both cement slurry and fibres, ensuring optimal dispersion.
    • Unique Helical Blade: Achieves high-shear mixing for sand/cement slurries at fast speeds while carefully blending glass fibres at lower speeds.
  2. Generous 65 Litre Capacity
    • Up to 125 kg of GRC: Easily accommodates mixes based on 50 kg of cement and 50 kg of sand, or smaller 25 kg cement batches.
    • Suitable for Spray & Premix GRC: Transition effortlessly between high-shear spraying and slower-speed premix operations without any compromise.
  3. Built-in Liquid Inlets
    • Compatible with WAAPS 3000 or Digital Water Meter: Enables automated water or admixture dispensing directly into the mixer, improving accuracy and reducing manual labour.
  4. User-Friendly Design
    • Dry Materials Loading Chute: Large opening with a rubber bung minimises dust during loading, creating a cleaner and safer work environment.
    • Inspection Hatch: Safely monitor the mixing process without stopping the mixer or lifting the lid.
    • Sealed Lid: Maintains a contained mixing environment, further reducing dust and spillage.
  5. Efficient Pneumatic Mechanisms
    • Air Ram Lift/Lower: Quickly raises or lowers the mixer head for easy vessel cleaning and maintenance.
    • IP55-Rated Motor & IP66 Enclosure: Offers protection from dust, water jets, and tough industrial conditions.
  6. Removable Plastic Mixing Vessels
    • Faster Colour Changes: Swap out different vessels for rapid transition between different coloured mixes.
    • Easy Maintenance: Simplifies cleaning and minimises downtime, critical for higher production schedules.

Technical Specifications

FeatureDetail
Weight– Bucket Trolley Version: 310 kg
– Tilting Drum Version: 570 kg
Dimensions– Bucket Trolley: 125 cm (W) × 150 cm (D) × 185 cm (H)
(220 cm with lid raised)
– Tilting Drum: 160 cm (W) × 160 cm (D) × 305 cm (H)
(350 cm with lid raised)
Capacity65 L (up to 125 kg sand/cement slurry)
Mixer Speed0–1430 rpm (50 Hz)
0–1720 rpm (60 Hz)
Motor9.2 kW, IP55-rated
Electrical Supply380/415 V, 3-phase, 50/60 Hz (others on request)*
Blade DesignProprietary helical mixing blade
Air Requirement3.5 L per lift at 7 bar (100 psi)
Air Inlet¾” (19 mm) hose tail (airline not included)
Dust ControlSealed lid, large loading chute with rubber bung

* If electricity supply is from a generator, consult Power-Sprays for additional protection.

Available Variants

  1. Bucket Trolley Version
    • Mobile Vessel Transport: Easily move the mix around the factory.
    • Adjustable Feet: Ensure the mixer is level, improving stability during operation.
  2. Floor-Mounted Version
    • Stationary Setup: Ideal for situations where a bucket trolley is not required, e.g. when paired with a bucket lift.
  3. Tilting Drum Version
    • Direct Discharge: Pour directly into spray stations or moulds from a raised platform.
    • Reduced Manual Handling: Minimises labour and streamlines large-scale production.

Optional Accessories

  1. Steel Hoop Mixing Vessel
    • Allows a full mix to be lifted and dispensed directly into a mould or spray station.
    • Compatible with Power-Sprays’ pneumatic, crane-mounted, and forklift-mounted bucket lifts.
  2. Digital Water Meter
    • Automatic Dispensing: Precisely measures the required water volume for each batch.
    • Manual ‘Jog’ Function: Fine-tune water addition without shutting down the mixer.

Why Choose the GRC125 Combination Mixer from Power-Sprays?

  • Dual-Purpose Excellence: Effortlessly switches between producing spray-grade slurry and premix GRC.
  • Dust & Containment Control: Sealed lid, large loading chute, and rubber bung significantly reduce mess and improve workplace safety.
  • Operator Convenience: Pneumatic lift, removable vessels, and an inspection hatch streamline daily operation and maintenance.
  • Reliable Performance: Backed by Power-Sprays’ extensive experience in the GRC industry, ensuring dependable results and long service life.

The GRC125 Combination Mixer revolutionises the GRC production process by delivering both high-shear slurry mixing and careful fibre integration in one versatile, easy-to-operate system. Its 65 L capacity is perfect for up to 125 kg of sand/cement slurry, while features like removable mixing vessels, integrated liquid inlets, and pneumatic lift/lower arms simplify handling and maintenance. Whether you’re working with small batches or scaling up for larger runs, the GRC125 is an efficient, robust, and cost-effective choice—further testament to Power-Sprays’ commitment to innovation and quality in the GRC industry.

Additional information

Related products

GRC125S Combination Mixer System

GRC125S Combination Mixer System

GRC250S Combination Mixer System

GRC250S Combination Mixer System

GRC125 Combination Mixer TD with Tilting Drum Discharge

GRC125 Combination Mixer TD with Tilting Drum Discharge

GRC125 Mixer

GRC125 Combination Mixer BT with Bucket Trolley

Diy concrete benchtops
Download the Ultimate Guide to Forming up your Precast DIY Concrete Benchtops.