Drilling Machines

The DOA AH15 is a hydraulically operated angle drive, specially developed for use with pipe drilling machines or screwdrivers. With its slow, controlled rotational movement, the unit is ideal for tapping into gas and water pipes, opening and closing gate valves, and raising and lowering upper decks on car trains. The ergonomic rotary handle with a deadman’s switch allows the speed to be precisely controlled – and stops immediately when released. The forward/reverse rotation, adjustable torque and protected design make the tool particularly suitable for use in wet, dusty or cold conditions. Thanks to its robust construction, the AH15 is not only versatile but also suitable for use in potentially explosive atmospheres. A revolution counter (model VO-30) is available as an option, which is particularly useful for controlled drilling operations. The AH15 is a professional tool for the construction and railway sectors – wherever reliability is required under extreme conditions. This low-speed tool is suitable: As a drive for drilling into gas and water pipes For opening and closing gas and water valves For raising and lowering upper decks on car trains Features The speed is continuously adjustable via the rotary handle. Immediate stop when the handle is released. (Deadman’s switch)The tool has forward and reverse rotation It can be used in potentially explosive atmospheres It can be used in heavily soiled conditions and in extremely wet environments.Adjustable torque and adjustable speedSuitable for use at low and high temperatures Rev counter (on the VO-30 model)

The DOA AK46G – hand-held hydraulic core drill (D=50–160 mm ) is a compact, high-performance 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 ideally suited to demanding applications in pipework, civil engineering, pipeline construction, as well as refurbishment and renovation work. An integrated safety valve with an automatic shut-off function provides reliable protection against damage should the drill bit become jammed. The machine features a water connection for clean and effective drilling. The tool holder, with a 1-1/4" external thread and a 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 the construction and pipework sectors. Safety valve with shut-off in the event of snagging 84 Nm max. torque Water connection Mounting mandrel: 1-1/4" external , 1/2" internalHydraulics: 20–34 L/min at 105–170 bar, back pressure: 90 bar Drilling diameter: ø 50–160 mmRotational speed: 400–600 rpmDimensions: 9 × 32 × 40 cmWeight: 8 kg

The DOA AK46GUW – hand-held hydraulic core drill, D=50–160 mm (underwater version) – has been specially developed for diving work and underwater operations. 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 environments or in pipework construction. The AK46GUW is fitted with a safety valve that automatically shuts off in the event of jamming, an integrated water connection and a mounting spindle with a 1-1/4" external thread and a 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. Weighing just 8 kg and with compact dimensions (9 × 32 × 40 cm), the AK46GUW is particularly easy to handle and ideally suited for mobile use underwater. It is a reliable specialist tool for professional use in construction, industry and for underwater repair and installation work. Available from KW Hydraulik – your specialist supplier of DOA hydraulic special-purpose tools and equipment. Safety valve with shut-off in the event of snagging 84 Nm max. torque Water connection Mounting mandrel: 1-1/4" external , 1/2" internalHydraulics: 20–34 L/min at 105–170 bar, back pressure: 90 bar Drilling diameter: ø 50–160 mmRotational speed: 400–600 rpmDimensions: 9 × 32 × 40 cmWeight: 8 kgUnderwater version for diving operations

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 pipework, civil engineering or installation work. The AK46S is fitted with a safety valve that automatically shuts off in the event of jamming, offering a high level of user protection. An integrated water connection enables dust-free and efficient drilling. The mounting mandrel with a 1-1/4" external thread is compatible with standard professional-grade core drill bits. The machine operates within a 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 worksites and mobile use. As a quality product from DOA, the AK46S is available exclusively from KW Hydraulik – your partner for high-efficiency, reliable hydraulic drilling technology. Safety valve with shut-off in the event of jamming 84 Nm max. torque Water connection Mounting spindle: 1-1/4” external threadHydraulics: 20–34 L/min at 105–170 bar, back-pressure: 90 bar Drill diameter: ø 20–100 mmRotational speed: 1000–1500 rpmDimensions: 9 × 32 × 40 cmWeight: 8 kg

Safety valve with shut-off in the event of jamming 84 Nm maximum torque Water connection Mounting spigot: 1-1/4” external threadHydraulics: 20–34 L/min at 105–170 bar, back pressure: 90 bar Drill diameter: ø 20–100 mmRotational speed: 1000–1500 rpmDimensions: 9 × 32 × 40 cmWeight: 8 kgUnderwater version for diving operations

The DOA AK50-100cc – hand-held hydraulic core drilling machine, D=125–250 mm (underwater version) – is a powerful specialist tool for precise core drilling underwater. Equipped with a 100 cc hydraulic motor, the machine is ideal for large drilling diameters of up to 250 mm – for example, in foundation work, pipework or maritime construction projects. Thanks to the compatible standard mount for drilling stands (drill rigs), the AK50-100cc can be guided with precision. A particular highlight: the hydraulic motor is interchangeable, enabling a high degree of adaptability whilst keeping operating costs low. Depending on the drilling diameter and hydraulic power, the unit achieves 300 min⁻¹ for Ø 130–250 mm (30 l/min) or 380 rpm at Ø 125–180 mm (38 l/min). The machine operates within a hydraulic range of 30–40 l/min at 200 bar, with a permissible back-pressure of 90 bar. An integrated water connection, a robust mounting spigot (1-1/4" external / 1/2" internal) and the well-thought-out, modular design make the AK50-100cc a reliable tool for professional diving operations. With compact dimensions of 54 × 22 cm and a weight of 13 kg, it is robust yet manoeuvrable – ideal for mobile underwater use. The DOA AK50-100cc is available from KW Hydraulik – your specialist for hydraulic drilling technology and underwater applications featuring DOA technology. Notes:Core drilling machines for mounting on booms. The hydraulic motor can be replaced quickly. This enables a wide range of applications and reduces costs.Features: Motor:100 cc hydraulic motor for diameters of 125–250 mm D = 130–250 mm – 300 rpm at 30 L/min.D = 125–180 mm – 380 rpm at 38 L/min.Standard mounting for drill standWater connection Mounting spindle: 1-1/4" external , 1/2" internalHydraulics: 30–40 L/min at 200 bar, back pressure: 90 bar Drilling diameter: ø125–ø250 (depending on the motor fitted) Speed: 300–380 rpm (depending on the motor fitted)Dimensions: 54 x 22 cmWeight: 13 kgUnderwater version for diving operations

The DOA HD13 is a high-performance hydraulic hammer drill with an SDS-MAX chuck, specially designed for demanding applications in rock, concrete and masonry. Thanks to its robust construction, the HD13 is also suitable for use underwater, for example in underwater construction or for maintenance work in the maritime sector. With a hydraulic flow rate of 20–25 L/min at 140–170 bar, the hammer drill achieves a speed of up to 400 rpm and a striking rate of 2,000 blows per minute, enabling efficient work in the hardest materials. The SDS-MAX tool holder ensures quick and secure attachment of the tools. The integrated handle and speed limiter ensure ergonomic operation and a high level of safety – even during prolonged use. Weighing just 13 kg and featuring a compact design (52 cm), the tool can be used flexibly on construction sites or underwater. The HD13 is therefore the ideal tool for construction professionals in the steel construction sector, the building trade and for underwater work. The HD-13 hammer drill is a hammer drill for drilling into rock, concrete or masonry using SDS-MAX bits. Hydraulics: 20–25 L/min @ 140–170 barRotational speed: 400 rpm at 25 L/min. Impact rate: 2000 min⁻¹ HandleSDS-MAX tool holderSpeed limitDimensions: 52 cm Weight: 13 kg

The DOA VO31 is a powerful, hydraulically operated specialised motor designed for manoeuvring gate valves and valves in gas and water pipelines. Designed for professional use in utility networks, this tool impresses with its high torque, precise control and robust construction – making it ideal for applications in the construction industry, at utility companies or for municipal use. Thanks to its 90 cm-long shaft with quick-release coupling, the forward/reverse function and the ergonomic rotation control (deadman’s switch), the VO31 is easy to handle – even by a single operator. The safety counter-hold bracket supplied as standard ensures additional stability and safety when working on valves that are difficult to access. Technically, the tool impresses with an adjustable torque of up to 400 Nm, a torque-limiting pressure valve, speed control via an oil flow valve and handle control, and an integrated digital display for counting revolutions – a key factor in the accurate documentation of valve movements. With an operating 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. Its hydraulic operation ensures quiet running, minimal vibration, low maintenance and complete protection against electric shock – ideal for daily use in the toughest conditions.A powerful and modern hydraulic tool designed for operating water valves in water supply networks. The long handle and clockwise/anti-clockwise control mechanism guarantee excellent control of operations under all conditions; it can be used by one or two operators and powered by hydraulic power units as well as vehicles and mini-excavators fitted with a hydraulic connection. Its use ensures safety and significant time savings. Hydraulic operation means quiet operation, low vibration, robustness, a long service life, minimal maintenance requirements and the inherent elimination of the risk of electric shock. It can also be used for the mechanical rotation of other rotating equipment, such as machinery for pipes and the handling of irrigation canal sluice gates, as well as various crank mechanisms. The VO31 boosts productivity and simplifies operation; it is an essential piece of equipment for any modern team.Advantages:Fitted with a safety retaining bar for use by a single operator and for securing to a fixed point, it prevents the machine from rotating along with the operator. Single-person operation is possible.‘Dead man’s’ rotation control, which stops rotation and operation as soon as the handle is released. High rotational force, enabling you to turn even severely jammed valves or tackle other applications. The 90 cm-long shaft can be detached and reattached thanks to a quick-release coupling.Technical data:Rotational speed0–70 rpm at 20 L/min0–100 rpm at 30 L/minMeasurement of revolutions performed: Yes, via digital display. Important for gate valves!Torque: 400 Nm at 140 barTorque control: YES, via the integrated pressure relief valveSpeed control: Yes, via the oil flow control valve and the rotary handleHydraulics: 15–40 L/min at 140–180 barDimensions: 95 x 33 x 21 cmWeight: 16 kg