Drilling Machines

The DOA AH15 is a hydraulically operated angle drive, specially developed for applications with pipe drilling machines or screwdrivers. With its slow, controlled rotary movement, the device is ideal for drilling gas and water pipes, opening and closing gate valves and raising and lowering the top decks of car hoists. The ergonomic rotary handle with dead man's control allows the speed to be precisely regulated - and stopped immediately when released. The right/left-hand rotation, adjustable torque and protected design make the tool particularly suitable for use in wet, dusty or cold conditions. Thanks to its robust design, the AH15 is not only versatile, but also suitable for use in potentially explosive atm ospheres. An optional revolution counter (model VO-30) is available, which is particularly useful for controlled drilling operations. The AH15 is a professional tool for the construction industry and railway technology - wherever reliability is required under extreme conditions. This slow-rotating tool is suitable:As a drive for drilling gas and water pipesFor opening and closing gas and water valvesFor lifting and lowering upper decks on car trainsFeaturesThe speed is infinitely variable using the rotary handle.Immediate stop when the handle is released. (dead man's control)The tool has clockwise/anticlockwise rotationUse in potentially explosive atmospheres is possibleCan be used in very dirty and extremely wet conditions.Adjustable torque and speedCan be used at low and high temperaturesRevolution counter (for model VO-30)

The DOA AK46G - Hand-held hydraulic core drill D=50-160 mm is a compact, powerful tool for precise core drilling in concrete, stone or masonry. With a drilling diameter of 50 to 160 mm and a maximum torque of 84 Nm, the AK46G is ideal for demanding applications in pipe construction, civil engineering, pipeline construction as well as renovation and refurbishment work. An integrated safety valve with shut-off function reliably protects against damage if the drill bit gets stuck. The machine has a water connection for clean and effective drilling. The tool holder with 1-1/4" external thread and 1/2" internal thread ensures full compatibility with standard drill bits. The hydraulic output is 20-34 l/min at 105-170 bar, with a permissible back pressure of 90 bar. With a speed of 400-600 min-¹, a weight of just 8 kg and compact dimensions (9 × 32 × 40 cm), the AK46G impresses with its precise handling - even in confined spaces. As a quality product from DOA, the AK46G is available from KW Hydraulik - your specialist for professional hydraulic core drilling technology in construction and pipeline construction. Safety valve with shut-off in the event of jamming84 Nm max. torqueWater connectionArbor: 1-1/4" external, 1/2" internalHydraulics: 20-34 l/min. at 105-170 bar, back pressure: 90 barDrill diameter: ø 50 - 160 mmSpeed: 400-600 min-1Dimensions: 9x32x40 cmWeight: 8 kg

The DOA AK46GUW - hand-held hydraulic core drill D=50-160 mm (underwater version) has been specially developed for submersible work and underwater applications. With a drilling diameter of 50 to 160 mm and a maximum torque of 84 Nm, the machine is ideal for demanding core drilling in concrete, stone or masonry - even under difficult conditions in wet areas or in pipe construction. The AK46GUW is equipped with a safety valve with automatic shut-off in the event of jamming, an integrated water connection and a mandrel with 1-1/4" external thread and 1/2" internal thread. The hydraulic output of 20-34 l/min at 105-170 bar, a back pressure of up to 90 bar and a speed of 400-600 min-¹ ensure powerful and precise drilling performance. With a weight of just 8 kg and compact dimensions (9 × 32 × 40 cm), the AK46GUW is particularly handy and ideally suited for mobile use under water. It is a reliable specialised tool for professional use in construction, industry and for underwater repair and installation work. Available from KW Hydraulik - your specialised dealer for hydraulic special tools and technology from DOA. Safety valve with shut-off in the event of jamming84 Nm max. torqueWater connectionMandrel: 1-1/4" external, 1/2" internalHydraulics: 20-34 l/min. at 105-170 bar, back pressure: 90 barDrill diameter: ø 50 - 160 mmSpeed: 400-600 min-1Dimensions: 9x32x40 cmWeight: 8 kgUnderwater version for submersible work

The DOA AK46S - Hand-held hydraulic core drill D=20-100 mm is a compact, high-performance tool for precise drilling in concrete, masonry or stone. With a drilling range of 20 to 100 mm and a speed of 1000-1500 min-¹, the machine is ideal for applications where speed, precision and mobility are essential - for example in pipe construction, civil engineering or installation work. The AK46S is equipped with a safety valve with automatic shut-off in the event of jamming and offers a high level of user protection. An integrated water connection enables dust-free and efficient drilling. The arbor with 1-1/4" external thread is compatible with standard core drill bits in the professional sector. The machine operates in the hydraulic range of 20-34 l/min at 105-170 bar, with a permissible back pressure of 90 bar. Despite its powerful performance, the AK46S impresses with a weight of just 8 kg and compact dimensions (9 × 32 × 40 cm) - ideal for confined spaces and mobile use. As a quality product from DOA, the AK46S is available exclusively from KW Hydraulik - your partner for hydraulic drilling technology with high efficiency and reliability. Safety valve with shut-off in the event of jamming84 Nm max. torqueWater connectionArbor: 1-1/4" external threadHydraulics: 20-34 l/min. at 105-170 bar, back pressure: 90 barDrill diameter: ø 20 - 100 mmSpeed: 1000-1500 min-1Dimensions: 9x32x40 cmWeight: 8 kg

Safety valve with shut-off in the event of snagging84 Nm max. torqueWater connectionMandrel: 1-1/4" external threadHydraulics: 20-34 l/min. at 105-170 bar, back pressure: 90 barDrill diameter: ø 20 - 100 mmSpeed: 1000-1500 min-1Dimensions: 9x32x40 cmWeight: 8 kgUnderwater version for submersible work

The DOA AK50-100cc - Hand-guided hydraulic core drilling machine D=125-250 mm (underwater version) is a powerful specialised tool for precise underwater core drilling. Equipped with a 100 cc hydraulic motor, the machine is ideal for large drilling diameters up to 250 mm - for example for foundation work, pipe construction or maritime construction projects. Thanks to the compatible standard mount for drill rigs, the AK50-100cc can be guided precisely. A special highlight: The hydraulic motor is interchangeable, which enables a high degree of adaptability with low operating costs. Depending on the drilling diameter and the hydraulic power, the device achieves 300 min-¹ at Ø 130-250 mm (30 l/min) or 380 min-¹ at Ø 125-180 mm (38 l/min). The machine operates in the hydraulic range of 30-40 l/min at 200 bar, with a permissible back pressure of 90 bar. An integrated water connection, a robust mandrel (1-1/4" external / 1/2" internal) and the well thought-out, modular design make the AK50-100cc a reliable tool for professional immersion applications. With compact dimensions of 54 × 22 cm and a weight of 13 kg, it is robust but handy - ideal for mobile use under water. The DOA AK50-100cc is available from KW Hydraulik - your specialist for hydraulic drilling technology and underwater applications with technology from DOA. Notes:Core drilling machines for mounting on mounts. The hydraulic motor can be replaced quickly. This enables a wide range of applications and reduces costs.Features: Motor:100 cc hydraulic motor for 125-250 mm diameterD = 130-250 mm - 300 min-1 at 30 l/min.D = 125-180 mm - 380 min-1 at 38 L/min.Standard holder for drill standWater connectionArbor: 1-1/4" external, 1/2" internalHydraulics: 30-40 l/min. at 200 bar, back pressure: 90 barDrill diameter: ø125-ø250 (depending on motor fitted)Speed: 300-380 min-1 (depending on motor fitted)Dimensions: 54x22 cmWeight: 13 kgUnderwater version for diving work

The DOA HD13 is a powerful hydraulic hammer drill with SDS-MAX chuck, which has been specially developed for demanding applications in rock, concrete and masonry. Thanks to its robust design, the HD13 is also suitable for use under water, for example in underwater construction or for maintenance work in the maritime sector. With a hydraulic output of 20-25 l/min at 140-170 bar, the rotary hammer achieves a speed of up to 400 rpm and an impact rate of 2000 blows per minute, enabling efficient work in the hardest materials. The SDS-MAX tool holder ensures that tools can be attached quickly and securely. The integrated handle and speed limiter ensure ergonomic operation and a high level of work safety - even during prolonged use. With a weight of just 13 kg and a compact design (52 cm), the tool can be used flexibly on construction sites or under water. The HD13 is therefore the ideal tool for construction professionals in the steel construction sector, in the building trade and for underwater work. The HD-13 hammer drill is an impact drill for drilling in rock, concrete or masonry with SDS-MAX inserts.SDS-MAX inserts. Hydraulics: 20-25 l/min. @ 140-170 barSpeed: 400 min-1 at 25 L/min.Impact rate: 2000 min-1 HandleSDS-MAX tool holderSpeed limiterDimensions: 52 cmWeight: 13 kg

The DOA VO31 is a powerful, hydraulically operated special motor for manoeuvring gate valves and valves in gas and water pipelines. Designed for professional use in the supply network, the tool impresses with its high torque, precise operating control and robust design - ideal for applications in the construction industry, utility companies or municipal use. Thanks to the 90 cm long shaft with quick-release coupling, the right/left-handed function and the ergonomic rotation control (dead man's control), the VO31 is easy to handle - even by just one operator. The supplied safety counter-holder bracket provides additional stability and safety when working on difficult-to-access sliders. The tool is technically impressive with an adjustable torque of up to 400 Nm, a torque-limiting pressure valve, speed control via oil flow valve and handle control as well as an integrated digital display for counting revolutions - a key factor in the precise documentation of gate valve movements. With an application range of 15-40 L/min at 140-180 bar, the VO31 is compatible with standard hydraulic systems such as those used in vehicles, mini-excavators or power units. Its compact design (95 × 33 × 21 cm) and low weight of 16 kg make it an indispensable companion for modern service teams in the field. The hydraulic mode of operation ensures quiet operation, minimal vibration, low maintenance and complete protection against electric shock - ideal for daily use in the toughest conditions.Powerful and modern hydraulic tool designed for operating water valves on water mains.The long handle and clockwise / anti-clockwise operation control guarantee excellent control of operations in all conditions, it can be used by one or two operators and can be operated by hydraulic power packs as well as by vehicles and mini-excavators with hydraulic connection. Its use guarantees safety and great time savings.Hydraulic operation means noiselessness, low vibration, robustness, long service life, minimum maintenance, implicit impossibility of injury from electric shock.It can also be used for the mechanical rotation of other rotating equipment, such as pipe and irrigation channel slide handling machines, various crank mechanisms.VO31 increases productivity and simplifies operation, it should not be missing in the equipment of modern equipped teams.Advantages:Equipped with a safety counter-holder bracket for use by one operator and for fixing to a fixed point, it prevents the machine from rotating. One-man operation is possible."Dead man" rotation control that blocks rotation and function as soon as the handle is released.High rotation force that allows you to turn even heavily blocked valves or other applications.The 90 cm shaft can be removed and connected thanks to the quick coupling.Technical data:Speed0-70 min-1 at 20 l/min0-100 min-1 at 30 L/minMeasurement of the rotations performed: Yes, via digital display. Important for gate valves!Torque: 400 Nm at 140 barTorque regulation: YES, on the integrated pressure relief valveSpeed regulation: Yes, on the oil flow limiting valve and on the rotary handleHydraulics: 15-40 l/min at 140-180 barDimensions: 95x33x21 cmWeight: 16 kg