RapidMix Pugmill Specifications

The Rapidmix Pugmill has been designed to be totally mobile and completely self-contained with its own power source. It is also completely self-erecting, using the hydraulic system to change the plant from its travel mode into a fully operational plant in minutes. Rapidmix Pugmills will mix up 400-600 tons per hour ( depending on application). Feed rates are fully adjustable for the aggregate, cement, and water systems.

RapidMix 400C & 400CW Dimensions

Length of Machine when ready for transporting 63′-11″(19.487m)
Width of Machine 9 ‘-10″ (3.00 m)
Height of Machine (When ready for transporting) 13 ‘-5″ (4.0962 m)
Height of Machine (When Erected) 44′-4″ (13.511 m)
Weight of Machine total 74,112 lbs (33,350 KG)
Weight on Rear Tri-axles 50,000 lbs (22,500 KG)
Weight on Front Pin 24,112 lbs (10,960 KG)

Rapid Mix 600C & 600CW Dimensions

Length of Machine when ready for transporting 63′-11″(19.487m)
Width of Machine 9 ‘-10″ (3.00 m)
Height of Machine (When ready for transporting) 13 ‘-5″ (4.0962 m)
Height of Machine (When Erected) 44′-4″ (13.511 m)
Weight of Machine total 78,892 lbs (35,860 KG)
Weight on Rear Tri-axles 54,780 lbs (24,900 KG)
Weight on Front Pin 27,780 lbs (12,600 KG)

Aggregate Hopper w/ Variable Speed Belt Feeder

The hopper has a capacity of 15.6 cu yds (12.00 cu m) and is 14 ft 2ins (4330 mm) on the loading side. It is so constructed having a removable division plate allowing two different materials to be mixed. In this mode the split hopper is loaded from both sides of the machine.

The bottom outlet is flanged to suit the connection of the variable speed belt feeder. The hopper sides have very steep angles with side slopes of 60 degrees and end slopes of 60 degrees. The hopper sloped sides are fitted with low friction high molecular polyethylene lining .472441″ (12 mm) thick.

Manually operated adjusting slide gates are fitted at the exit end of the hopper to give additional variance to the feed rate. A conveyor belt feeder with variable speed control is fitted under the aggregate bin discharge point.

rapidmix 600c Aggregate Hopper,rapidmix 600c continuous mixing plants,pugmills
rapid mix 600c Twin Shaft Mixer,rapidmix 460c continuous mixing plants,pugmills

Twin Shaft Continuous Mixer

The twin shaft continuous mixer is fitted with paddles, which are intermeshed in a special phased relationship to optimize mixing and maximise throughput. The shafts are driven by a 75 kw (100 hp) electric motor through a set of bull gears,which run in an oil bath.

The mixing chamber is formed by fabricated sloped sides with a troughed conveyor under the mixer forming the bottom of the mixer. This conveyor is fitted with a high torque slow speed drive with a 5.5 kw (7.5 hp) motor and shaft mounted speed reducing gearbox.

The driven convey or drum is crowned and lagged and is 300 mm (12”) diameter. This conveyor is used for clean out purposes only. The mixer should be lined with a bed of material every morning before production starts. This ensures easy clean out.

Cement Binder/Silo

  • Silo Capacity: 55 tons based on material being 1500 kg/m3 (93.64 lbs/ft3).
  • Design: welded construction supported by mild steel stanchions stiffened with mild steel wind bracing.
  • Construction: 4 mm mild steel plate – roof of silo is surrounded at perimeter by double hand-railing.
  • Outlet: 750 mm x 750 mm (30″ x 30″) flanged outlet to suit variable speed paddle feeder.
  • Slide Shut-Off: supplied to isolate the silo outlet for maintenance to paddle variable speed paddle feeder.
  • Variable Speed Rotary: 750 mm x 750 mm (30″ x30″) flanged to fit on silo bottom, with a split staggered reduced volume rotor giving a feed rate up to 60 T.P.H. driven by 2.2 kW (3HP) geared electric motor.
  • Silo Access: A manhole is provided on top and in the cone of the silo for maintenance access.
  • Relief Valve: Situated for ease of maintenance on manhole lid, protects silo from over/under pressurizing.
  • Filter Unit: 20 m2 Reverse Air Jet fan assisted type filter mounted on silo roof.
  • Filler Pipes: 2 No 100 mm dia terminating in a uni cone fitting or standard pipe thread.
  • Level Indicators: High and low level indicators.
  • Roof Silo Access: Ladder w/ safety cage.
rapidmix 400cw silo,rapidmix 400cw continuous mixing plants,pugmills
rapidmix 400cw conveyor feeder,rapidmix 400cw continuous mixing plants,pugmills

Out-Loading Conveyor

  • Length: 11.4 m c/c (37 ft).
  • Angle of Inclination: 20 degrees.
  • Construction: RHS design.
  • Belt Width & Type: 800 mm. / 2 ply flat belt.
  • Belt Joint: Factory vulcanized.
  • Belt Tensioning: By screw take up assembly at tail drum.
  • Head Drum: Lagged and crowned.
  • Feed Boot: 6 mm mild steel plate with rubber skirts to prevent spillage.
  • Belt Scraper: Polyurethane blade pre-cleaner mounted on the of head drum.
  • Belt Scale: Incorporated approx. midway along the length of the conveyor.

On Board Water System

Tank capacity is 1750 liters (462 galls) and is complete with ball valve and all necessary pipe-work.

Two positive displacement pumps are fitted to supply 2No water bars within the mixer. Each spray bar has a ball valve to allow addition of water early in the mix, later in the mix or both together. A calibration point for accurate water weighing is also included.

rapidmix 400cw Water System,rapidmix 400cw continuous mixing plants,pugmills
rapidmix 400cw water system,rapidmix 400cw continuous mixing plants,pugmills

Pneumatic System

The Rapidmix 400 is equipped with a compressor to provide air for the gob hopper doors and silo filter.

  • 1/2″ solenoid operated spool valve for control of the gob hopper doors.
  • 1/2″ filter / auto drain.
  • 1/2″ regulator (complete with pressure gauge).
  • 1/2″ lubricator.

Hydraulic Power Pack

Used to level machine before erection and to erect Silo and out-loading conveyor.

  • Electric Motor 11kW
  • Bellhousing
  • Drive Coupling
  • Hydraulic Pump
  • Subplate Pressure Relief Valve
  • Directional Valve
  • Oil Reservoir
  • Filler Breather
  • Level Gauge
  • Return-Line Filter
rapidmix 400cw Hydraulic Power Pack,rapidmix 400cw continuous mixing plants,pugmills
rapidmix 400cw control panel,rapidmix 400cw continuous mixing plants,pugmills

Control Panel

The operator panel consists of a series of push buttons to allow automatic and/or manual control of the following:

  • Mixer
  • Air compressor
  • Out load conveyor
  • Aggregate conveyor
  • Silo feeder
  • Water Pumps
  • Hydraulic Power
  • Clean Out Conveyor
  • Silo Filter Fan
  • Internal Lighting
  • External Lighting
  • Gob Hopper Doors
  • Auxiliary Feeder
  • High Silo Alarm
  • Low Silo Alarm
  • Low Water Alarm
  • Alarm Mute
  • Emergency Stop
  • Stop Reset
  • Panel Live Indicator
  • Generator Start