Acker Drill Company Inc products

Light duty (140 lb.) drive weights are primarily used for "Standard Penetration Tests" with drive type samplers. Heavier drive weights are used to drive pipe, casing, chopping bits, boulder busters and heavy duty samplers. They are operated like a pile driver. Drive weights are available with or without a chain sling.

Acker Drive Heads are threaded with a pin thread on the bottom to take the casing being driven and a box thread on the top to accommodate a guide and pull piece. Reverse drive action is used to pull the pipe. Internal box threads are used to accommodate drive samplers or chopping bits.

Drive rings are designed to slip over the drive pipe and rest against the pipe coupling. The ring protects the coupling and drive hammer when bumping out or driving the pipe.

Assembly is made from double extra heavy drive pipe threaded at both ends and includes a drive pipe coupling. It screws directly into the top of the drive head (Not Included). The drive pipe coupling is used when bumping back casing or samplers. The pipe stem serves as a guide for the drive weight.

"One piece" hammer design provides safety, accuracy and speed for sampling operations. Hammering and bumping actions are enclosed in the hammer body ft" safety with the added advantage of carrying out both operations without a change of tools.
The hammer body is 3/4 inch (19mm) wall carbon steel tubing with the head and bumping block made from high grade carbon steel. The head is threaded and welded into the body for durability. A 50 inch (127cm) AW drill rod (with replaceable coupling) is threaded and welded into the anvil providing a 34 in (86.4cm) stroke. Overall length is 61 inches (154.9cm). The assembly weight is 163 lbs. (73.9kg).

Hardened tough nose, bull point boulder busters are attached to drill rod and driven by a drive weight and cathead hoist. Boulder busters are used to break up boulders that lie ahead of the casing. Boulders may more easily shatter if a hole is drilled through the boulder prior to driving.

Cross chopping bits are used to clear the way when driving casing into coarse gravel, small boulders, etc. They are also useful for cleaning out holes drilled in rock.

Conventional three cone design roller rock bits are widely used in soft to medium hard formations. This versatile bit is used in overburden and has been quite successful in drilling rock. However, it does require a considerable amount of down pressure to successfully cut rock. Roller rock bits are used with drilling muds or plain water. (Bits are available on special order for use with air os o flushing/cooling medium.) The bit is usually backed up by a heavy steel drill collar to provide the additional weight needed.

This type of bit, designed with heavy duty carbide inserts, is used for fast cutting of rock formations and cleaning out drive pipe and casing. Requires some down pressure especially in harder formations. Available in three-wing design.

More Subs and Adapters Acker manufactures a wide selection of subs and adapters not listed in our Drill Supplies Catalog that are available for quick shipment.