joke Technology GmbH
About us
For 85 years, joke Technology has been a leader in the field of surface technology - whether grinding, lapping, milling, polishing, deburring, welding or cleaning. The German specialist focuses on three factors: top quality, expert advice and excellent service. Thanks to a huge warehouse, most of the 20,000 products are immediately available and quickly in the workshop. joke Technology's portfolio includes drive systems and handpieces, tools and consumables for grinding, lapping and polishing, diamond and CBN tools, cutting tools, cleaning systems, blasting systems, training courses on various topics and everything for welding (repair, TIG, pulse or laser welding). joke Technology delivers to over 80 countries worldwide.
Products & services
ENESKArapidcoat - The carbide coating device! For fast and effective coating of larger metal surfaces.
Tungsten carbide coating devices from joke are used to coat particularly stressed surfaces quickly and easily by applying a hard metal layer. The process is particularly suitable for tools, moulds or general surfaces that need to be especially tough, hard and wear-resistant, e.g. punching or bending tools. In addition to these classic applications, the process is also suitable for producing a wear-resistant, rough surface. This can be used to improve the adhesive and holding properties, e.g. for grippers, gripper and clamping jaws etc. or for sliding surfaces, e.g. to improve the adhesion of an oil film. Parts of the friction surfaces of a mechanical guide can also be coated in order to compensate for dimensional deviations caused by abrasion. It can also be used to create a heat-resistant protective layer, e.g. to protect moulds in die casting. The latest development from joke is the ENESKArapidcoat. It is suitable for fast and effective coating of large surfaces. By melting a rotating hard metal electrode made of tungsten carbide at 2,800 °C, a hard metal layer is applied and a maximum surface hardness of 82 HR 30 N is achieved. Compared to conventional devices, the ENESKArapidcoat achieves an extremely clean and homogeneous coating in just one operation. The very simple operation is unique. In addition to the handpiece with rotating electrode, the ENESKArapidcoat can also be operated with the vibrating handpiece of the ENESKArecoat system. Highlights: • fast coating of larger surfaces and tool sections • easy-grip handpiece for comfortable application • proven ENESKA operating environment • adjustable direction of rotation • various switch-on modes • storage of individual parameters • use of coarse electrode diameters. • High-quality interchangeable collets with high concentricity accuracy • System is compatible with foot switch on request • Parameter settings can be adjusted during the coating process • Air-cooled application handpiece
ENESKAmicro
The new standard for grinding, polishing, milling and deburring ENESKAmicro – the unbeatable all-round talent The in-house development by joke sets standards for micromotor systems. What is unique about this series is its system-wide and downwards compatibility as well as extreme power. Higher final speed, more power, higher clamping force for the handpieces, 100% Made in Germany, touch display, USB interface and high level of true running are just some of the highlights of this extraordinary system. This not only enables its use in many new application areas, such as aerospace and 3D printing, but also in conventional toolmaking and mould building or in medical engineering. Simple to operate with the touch display The core component of the ENESKAmicro is the intelligent control unit. Intelligent because it automatically detects which micromotor is connected, whether from the joke family or a third-party manufacturer. The individual settings can be saved on the touch display with station keys. The speed input can be set via a finely adjusted rotary knob or optionally via a foot switch. The slim design and low centre of gravity make for high stability. The control unit dispenses with fans or slots – which means less noise pollution for the user and it is also dust-protected (according to IP 54). The facts speak for themselves: • Tremendously high cost advantage compared to expensive compressed-air • Remarkably high-speed, variably adjustable • Low-vibration work • Quick tool changes without external aids • Low noise pollution
ENESKAsonic - Ultrasonic lapping and polishing system
The most innovative advancement in the field of ultrasonics ENESKAsonic – high-efficiency, leading-edge, latest generation for finest stock removal As with the ENESKAmicro, the ENESKAsonic ultrasonic system is characterised by consistent advancements in every respect. An outstanding feature is the sophisticated design combined with convenient high-tech equipment. Highlights: • Intuitive touch operation combined with a rotary controller on high-quality glass • Modern LED-assisted multifunctional display • Boost function for applications requiring greater power • Idle timer detects unused handpieces and protects against wear • USB charging connection enables for example optional addition of a workplace light without a further power source The ENESKAsonic is used for polishing and lapping in the frequency range of between 20 and 30 kHz. The Auto Tune function determines the optimum frequency. The infinitely adjustable power control is suitable for fine, delicate work on narrow webs and edges as well as in boost mode for power-intensive, extra abrasive work with sintered diamond files. The LED-assisted display shows the widest range of operating parameters and settings. The 140 g lightweight handpiece with an M6 fine thread is comfortable to hold and enables fatigue-free work. It was especially important to our development department that this addition to our family should also be “100% Made in Germany” and be reverse-compatible with ENESKA 2-1 handpieces. Guaranteeing this demand for particularly high quality is a major concern for us and protects your years of investment. Combine the ENESKAsonic with an ENESKAmicro and you will receive an unbeatable tandem fully specialised in their respective fields.
ENESKAmobile - Mobile polishing system
The handy, battery operated ENESKAmobile polishing system is the ideal tool for setters and toolmakers – anywhere that grinding, polishing, milling or deburring is required. Robust and shock-resistant, it can be used flexibly in any place, and away from the work bench. This mobile device is extremely versatile as it can be used with all motors, handpieces and filing machines compatible with the ENESKAmicro. It is also powerful and long-lasting. The batteries can be charged separately, which allows non-stop working. With up to 3 hours battery life under full load and a maximum torque of 6.5 N cm at 40,000 rpm, it can be used in a significantly wider range of applications than conventional devices of this type. The speed is continuously adjustable from 2,000 to 40,000 rpm. Left and right rotation are also a matter of course with this single-handed device. Highlights: • Extremely versatile, as it can be connected to all ENESKAmicro motors (BLDC), handpieces and filing machines • Ergonomic handling given by start/stop function directly on the motor, straightforward control unit and pocket-size casing • High-quality Li-Ion batteries • No inconvenient time lost waiting for the batteries to charge, because they are exchangeable and can be recharged separately • for brushless DC motor (BLDC) • Runs clockwise/anticlockwise • Monitoring of battery level and temperature • Digital control with protective disconnection • High torque with max. of 6.5 N cm on the motor shaft
ENESKAmicro - The next generation handpieces and motors
A whole series of new applications have emerged in recent years in the field of surface finishing. New tools have developed inparallel that place different demands on the drive units. With the 3rd generation of ENESKA motors, joke takes account of these new requirements and in doing so achieves a genuinegame change: the range of speeds with conventional surface finishing devices is very wide these days, e.g. 0 - 50,000 rpm, inorder to be able to cater for as many applications as possible. This misses the point of everyday work however, as very few usershave tasks that cover this entire range. In addition, motors with such a wide range of speeds cannot deliver constant power overthe whole spectrum. Torque is often lacking in the lower speed range. joke is therefore adopting a different, more practical approach with its new generation of motors: For the first time, users now havethe possibility of choosing among different motors. They can now choose the one with the performance characteristics that best suittheir applications. All models are characterised by their durability, power, ergonomical handling, precision and high efficiency. Drives are available that are still suitable for a wide range of tasks but, like competitive athletes, are particularly strong in theirmain disciplines: • THE WORKER for tasks that call for particular power, which necessitate a low speed and a high torque at the same time. • THE FINE FINISHER for light work that requires particularly fine fingertip control. • THE FAST RUNNER for work with tools that require high speeds, such as milling or grinding • THE ALLROUNDER for high flexibility and a wide range of applications where medium torque is sufficient • THE BALANCED ONE for maximum accuracy in a slim and robust design • THE OPERATIVE for mounting in fixtures All six motors run at a very constant speed and operate extremely quietly with low vibration.
