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Mollart Engineering's LD4 Drillsprint deep hole drilling machine offers a 750mm stroke complete with full automatic loading and unloading along with a range of the latest deep hole drill tooling from Botek.
Said Managing Director Guy Mollart: "The North American market is important to us and as an example of our success, between March and August we have installed or taken orders for eleven machines."
These orders include two 4-spindle and two 3-spindle machines with automatic loading systems plus a stand-alone 2-spindle machine all for producing gun barrels. Four 4- spindle machines have been ordered for drilling for engine valves and a 2-spindle machine for medical components. In addition, a 2-spindle machine is on order to produce for thermowell temperature sensors and a 4-spindle machine for transmission shafts which has been tooled using the latest Botek HP gundrills.
The Drillsprint LD4 has a capacity between 2mm and 16mm diameter by 750mm deep, can be supplied with counter rotation to create concentric bores and is ideal for thin wall components. There is a range of auto loading solutions including gantry, pick and place and robotic systems. Machines can be supplied with one, two, three or four spindles.
Amongst the latest tooling on display will be the single lip, solid carbide Botek gundrill, the Type 113-HP, which has a penetration rate up to 800 per cent faster than conventional drills for use in special gundrilling machines, machining centers and lathes that have through-tool coolant supply. Tools are available between 0.7mm and 12mm diameter with a depth to diameter ratio of up to 80:1.
Related Glossary Terms
- centers
centers
Cone-shaped pins that support a workpiece by one or two ends during machining. The centers fit into holes drilled in the workpiece ends. Centers that turn with the workpiece are called “live” centers; those that do not are called “dead” centers.
- coolant
coolant
Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.
- drilling machine ( drill press)
drilling machine ( drill press)
Machine designed to rotate end-cutting tools. Can also be used for reaming, tapping, countersinking, counterboring, spotfacing and boring.
- gundrill
gundrill
Self-guided drill for producing deep holes with good accuracy and fine surface finish. Has coolant passages that deliver coolant to the tool/workpiece interface at high pressure.
- gundrilling
gundrilling
Drilling process using a self-guiding tool to produce deep, precise holes. High-pressure coolant is fed to the cutting area, usually through the gundrill’s shank.
