Products Catalog

The stationary Stallion aggregate section is constructed of 1/4" steel on sloping sides and 3/16” steel on vertical. The aggregate batcher is 12 yd. and the plant is standard with a 30” transfer conveyor. 36” belt and A/R or poly liners are available. The stallion series aggregate bins can go up to 200 ton max. For larger size aggregate bins please consider the Empire Series Heavy Duty Plant. All aggregate gates will have permanently lubricated gear gates with six (6) 3/4” gear teeth. All cylinders are 5” x 8” with coated shafts for extra protection.

The round Stallion Batching silo has a 14yd cement batcher and the silo can range between 374 BBL to 1069 BBL. We can do single or double compartments. Each Silo can be customized with different cement silo dust collectors, ladders, cages, and platforms. All silos will have a 3/6” cone, 1/4” domed top. Larger silos will have bottom rings constructed from 1/4” steel and all two compartment silos will have all the rings fabricated from 1/4” steel.

A completely portable plant with gravity drop cement. Quick, easy erection and very low horsepower requirements.

With multiple plant configurations available, this Stephens plant can move in one load of freight with a maximum of 528 BBL silo and 90 ton aggregate bins. Larger sizes are available in 2 loads.

The Thoroughbred plant is wired in conduit and pre-plumbed. The main disconnect and plant power panel are enclosed in a steel cabinet with hinged, lockable steel doors, positioned to face away from the transfer conveyor for cleaner, safer operation. The plant air compressor is located on the plant's 5th wheel, away from the transfer conveyor for a cleaner and safer operation.

The sloping sides of the aggregate batcher and bins are 1/4" steel.  The Stephens bin will have sufficient clearance under overhead gates to allow room for work. Gates are not below or even with the top of the aggregate batcher, so a clean out hatch or door is not required. All gates have six (6) 3/4" thick teeth that are permanently lubricated and bolted on.

The Clydesdale Batch Plant is a skid based self-erecting portable concrete batch plant. Highly portable heavy-duty batch plant that will improve the quality and efficiency of your mobile operations. Concrete foundation may not be required (consult local engineer). No crane needed because the unit can be installed with a standard loader and gin pole in combination with the hydraulic self-erect system. Accumulative and decumulative configurations available.

The Standard DC-Colt can be delivered in one load of freight. The plant is standard with 374 BBl silo (other sizes available) and 30” transfer conveyor. The plant is completely pre-wired and pre-plumbed with 3” water meter and 15HP air compressor. The Stephens Colt is a low profile Decumulating Batch Plant with a charging height of 12’3”.

The cement silo and batcher are both round and discharge by gravity. A Flyash silo can easily be added.

A "starter" plant designed to be portable for quick, easy erection. The decumulating aggregate batcher allows for both rock and sand to be weighed and separately discharged into a truck for accuracy. The unique design allows for future plant expansion with overhead bins and fly-ash silos to be easily added.

The two compartment design allows for quick loading by front-end loader. The loader just keeps the batcher full -- it does not have to accurately load a certain amount of rock and sand.

DC-Colt plants are constructed of 1/4" steel in sloping side of aggregate batcher. The I-beam support frame can support 150 ton bins in the future.

Decumulation batching provides:
• Direct charging with front end loader
• Efficiency and accuracy equivalent to a plant with overhead storage
• Ideal starter/satellite plant with low initial cost
• Plant production capability can easily be increased with overhead bins

Standard Components:
• 350 BBL cement silo
• two (2) 10 " screw conveyors
• 70 ton x 3 compartment AGG bins
• 30" transfer conveyor
• Silo filter vent
• Cement bin level indicator
• 3" water meter
• 15 HP compressor
• 12 yard AGG batcher
• 14 yd (140 cu. ft.) cement batcher

Optional Equipment:
• Larger "in-truss" cement silo
• Dual compartment cement silo
• Larger AGG bins (up to 200 tons)
• 36" transfer conveyor
• Water batcher and holding tank
• Larger air compressor
• Central dust collector
• Flyash silos and screws
• Radial stacker or truss conveyor
• Hydraulic cylinders and engine

The Empire Series Rectangle has a multiple compartment cement silo in lieu of round silos.The Empire Series Rectangle's advantage is in the silo design. The Empire Series Rectangle plant has a silo from 200 tons to 375 tons with two to six compartments. This design eliminates screw conveyors, reduces the number of piers and footers required, increases yard space and increases storage. It also keeps a relatively low overall height. This plant can easily be enclosed and can produce concrete around 200 yards per hour.

Standard Equipment:
• Multiple compartment silo:  with 4” thick double wall partition with penetration check plug in wall. (4” wall will reduce total capacity of silo approx. 4%)
• One safety pressure-relief valve with cover mounted on top of each compartment.
• One 4” diameter fill line with camlock coupling on each compartment.
• Aeration diffusers (rectangle) in each cone with electric solenoid and filter regulator.
• Aeration blower strongly recommended.
• Outside ladder and safety cage, with toe board and pipe handrails around top of silo.
• Expanded metal service platform around batcher.
• Inspection hatch on top of each compartment. 
• 10” butterfly valve on each cone, with actuator and electric solenoids.
• Manual emergency slide gate on each cone of silo.
• Hi & low material level indicators in each compartment with lighted signals in control box.
• SOS-1020:  Silo cartridge vent, one (1) on each compartment

Easy erecting, modular type stationary plant.  Heavy duty H-beam columns support aggregate batcher and bins.  1/4" steel on sloping sides of batcher and bins.  All seams are welded inside and out.  All Stephens gates are permanently lubricated with six (6) 3/4" teeth per gate.  Gates bolt to bins and batcher for easy replacement and maintenance.

We can custom-build a plant to your size requirements or to hit existing footers and piers.

Standard Equipment:

Cement Batcher:
• 14YD cement batcher 140-Cu. Ft. with 10,000 LB lever system, one “s” type load cell (150’ cable) with 0-10 VDC digital readout, with inching gate on batcher, inspection hatch on top of batcher.
• 10” butterfly valve.
• Actuator with electric solenoid and flo-restrictors mounted in solenoid.
• Two aeration pads in cone of batcher with solenoid controls and filter regulator
• Turbine type air vibrator with electric solenoid.
• Hanger lugs for hanging test weights and safety chains to secure batcher

Batching Silo:
• 374 thru 606 BBL silo constructed of 3/16” steel plate with ¼” domed top.  837 thru 1,069 BBL similar with ¼” metal in 1st band. (All two compartment silos have 1/4” in each  band).
• Safety pressure relief valves.
• 4” diameter fill lines, inside silo per compartment.
• 8 aeration pads in each cone and filter regulator per compartment.
• Outside ladder and safety cage.
• Expanded metal service platform around batcher.
• Inspection hatches on top of silo.
• 10” butterfly valves on silo, with actuators and electric solenoid per compartment
• SOS-1020 silo cartridge vent per compartment. 
• Hi & low-level indicators per compartment.
• Manual emergency slide gate per compartment.
• Silo support structure constructed of steel “structural” beams 374-606 BBL = W8 x 31#, 837 BBL = W8 x 48# 1069BBL=w10x49 Based on 10c mph. wind/load. Consult factory for other models.

Overhead Aggregate Bin Section:
• Two clam gates on each compartment (when possible). Each gear type gate has six (6) ¾” teeth per gear. Each gate has permanently lubricated bronze bushings on each gear.
• Each gate has a 5” diameter air cylinder  with electric solenoid.
• Sloping sides of gate section fabricated of ¼” plate with remainder 3/16” vertical sides.
• Heap plates.
• Support structure constructed of steel “structural” beams.
• ¼” abrasive resistant steel (400 Brinnell) welded immediately above each gate (approximately 12” tall).
• Aggregate bins are rated at heaped capacity based on 100 lbs cu. ft.

Aggregate Batcher:
• 12 Yard capacity with 40,000 lb scale lever system.  One “s” type load cell (150’ of cable) with 0-10 VDC digital readout.
• 580 Cu. Ft. capacity at water level.
• Sloping sides fabricated of ¼” plate, 3/16” remainder.
• Two discharge openings in batcher with one (1) extra long double acting clamshell gate, under both openings.  
• Gear type gate with six (6) ¾” teeth per gear.  Gate has permanently lubricated bronze bushing.  Gate will be actuated by two 5” air cylinders, with flo-restricators mounted in solenoid, (NOTE:  If conveyor comes out the “wide side” the batcher will have only one discharge opening, one cylinder, and solenoid for gate.)
• Two turbine air vibrators.
• Filter, regulator, lubricator unit for solenoids and air cylinders.
• Hanger lugs for hanging test weights.

Features:
• Extremely large portable plant
• Supports two 1069 bbl silos and 200 ton aggregate

The Falcon is Stephens’ largest portable plant. The standard frame (in seismic zone 1) can support two 1000 BBL silos and up to 200 tons of aggregate. Models can be designed for any seismic area and aggregate storage up to 400 tons. The plant is standard with 15hp (240 gallon) compressor, 3” water meter and 30” transfer conveyor. The plant can easily be upgraded with larger compressor, weighed water and a 36” transfer conveyor. The plant can easily support an optional Stephens SOS central dust collector on the same frame.

The Mustang Plant is a mobile in-truss silo style plant. The silo is a 400 bbl and the bins are 70 tons. This plant is great for easy and quick installation and moving from site to site. This will give Stephens two "in-truss" style plants. The larger and much faster Eagle plant and the NEW more mobile Mustang.

Features:
• Mobile in-truss silo style plant
• 440 BBL cement silo
• 70 ton bins
• 150 yds. per hour
• 12 yd. Mustang Plant
• 14 yd. Cement Batcher (144 cu. ft.)
• 12 yd. Agg Batcher (575 cu. ft.) 
• 3” Water Meter
• 10 HP 120 Gallon Compressor
• Plant Power Panel w/ 200 Amp Disconnect (3rd Party UL Approved)
• Optional central dust collector