Lang Tool Co. products

Lang Tool Co. has developed most of the soil mixing equipment that it employs in house. The LTC designed and manufactured Dual Axis Blender is unique in that the main drill stem turns on a vertical axis while the drums on the lower horizontal axis counter-rotate. Powered by a 490 hp engine, the DAB produces a violent mixing action. The reagent plumbing outlet is in the middle of the mixing action. The DAB has been used successfully on a multitude of projects including those involving an ISCO process in hard glacial till clay. Equipped with GPS, the Dual Axis Blender knows where it’s going and where it’s been.

The Lang Tool Co. ISCO Plant consists of a dry bin with scales, a mix truck with two 750 gallon tanks, two platform scales and a diaphragm pump. The dry bin is loaded with a service truck equipped with a crane. Drums or totes of liquid reagent are placed on the platform scales with a forklift. The liquid is pumped off the scales with the diaphragm pump. The plant operator enters the gallons of water, the weight of the dry reagent and the weight of the liquid reagent into the onboard computer. When the entered quantities of each reagent component is reached the delivery shuts down to prevent over filling, leaving the plant operator free to watch the delivery. While “A” tank is being filled, reagent is being pumped from “B” tank and vice versa. This allows soil mixing to proceed without stopping. The plant operator can control the rate of delivery to the blender to match the rate of mixing progress. The delivery shuts off when the entered quantity is reached.

The Lang Tool Co. ISS Plant consists of a mix truck with a computerized scale system, a piston grout pump and either one or two 35 ton silos with scales, depending on job specific conditions. The plant produces slurry on a continuous basis. The plant operator enters the total weight of cement to be delivered to a mixing cell and sets the rate of delivery, in lbs/minute, and the water ratio. The rate of delivery can be adjusted at any time to match the mixing progress of the blender. The water ratio can be changed as well if site conditions vary. When the entered quantity of cement is reached the system shuts off the delivery, which prevents any inadvertent overdosing. Lang Tool Co. frequently averages over 125 tons of cement a day on ISS projects.

When the horizontal and vertical limits of a soil mixing project are established, Lang Tool Co. prepares a CAD drawing of the cell layout for the project and a surface drawing that conforms to the bottom mixing elevation or target. The bottom surface can vary if the project specifications call for different target elevations on various parts of the mixing area. LTC used these files to create a GPS program for the project.

The 220-LTC tool carrier equipped with an LTC Deep Digger blender is well suited for shallower ISS or ISCO soil mixing projects.

LTC Series IV Blender Installed on a 385 Cat Excavator Stabilizing Dredge Material on a Project in Paulsboro, New Jeresey. LTC Series IV Soil Mixing head on Cat 385 on the job at Newark Bay. For 180,000 lb and larger Excavators, this unit has stabilized millions of cubic yards of dredge material since 1997.

Well suited for shallow ISS or ISCO soil mixing projects. Torque– 26,000 lb/ft. Rotational Speed– 0-80 rpm. Drum Width– 28”. Drum Diameter at Bit Tips– 54”. Weight– 7,000 lb. Bits– Various flat shovel and conical carbide arrangements.

In addition to the standard attachments, Lang Tool Co. custom designs attachments for specific job requirements.  This is how the LTC Rock Saw was developed.  LTC was approached by a Florida contractor who had to deepen a canal with a limestone bottom.  Blasting was not allowed on the project.  Lang Tool Co. designed a saw to cut 4” wide and 2’ deep.  The contractor made cuts in the stone about 2’ apart. A 450 excavator was used to pull out the sections between the cuts.  This method proved to be very efficient and cost effective. The Rock Saw has been used to cut reinforced concrete.  The saw drive assembly is designed so that different blades with wider cutting widths and different cutting depths can be installed in place of the standard blade.  Lang Tool Co. can custom design a saw blade per your specifications.

Effective Dust Control with Low Water Volume, Volume Adjustable to Accommodate Changing Conditions, Water Pump Driven from Tool Carrier Hydraulic System, 350 or 500 Gallon Tanks Available, Ground Level Water Tank Filling System

LTC In-Situ Blenders are recognized as the most productive and durable blenders on the market. They are capable of mixing dry soil as well as sludge material at very deep treatment depths. These blenders have been used extensively on major remediation projects in the US and South America. From Buenos Aires, Argentina to the Aleutian Islands of Alaska, LTC remediation blenders have delivered consistent high production and rugged durability for our customers.