Torque Multiplier for wind power

Wind turbines need to withstand high environmental impact. Many tons of weight must be held at lofty heights with absolute reliability. Especially under extreme forces or weather conditions, highly precise, wind-proof bolting techniques are crucial for success. The alkitronic® product range is characterised by complete system solutions for bolted connections in wind turbines.

Selected bolting processes on wind turbines.

THE DRIVING FORCE FOR WIND ENERGY

We know your applications and your bolting processes best. alkitronic® offers you a range of services that leaves nothing else to be desired, from advice, over a wide range of products to the assembly documentation system. Whether on land or in the offshore sector.

Fast electric torque multipliers, for example for turbo-assembly applications
Compact hydraulic torque wrench, e.g. for azimuth gears
Efficient manual devices, e.g. for easy maintenance work
Devices for the torque-rotation angle process, which are ideal for the assembly of rotor blades, for example

Advantages in all areas

WORK AS FAST AS THE WIND WITH US

In production, assembly or maintenance: In order to achieve the perfect result when bolting wind turbines, you should always use the most suitable bolting method. Thanks to the universal alkitronic® product range, you do not need to make any compromises, be it in terms of speed, precision or efficiency or productivity. In addition to our system consulting service we have electrical, battery-powered, hydraulic wrenches or manual torque multipliers in our program – so you are ideally prepared for any task and not bound to a specific technology!

The unique alkitronic® quality – Made in Germany – guarantees you additional performance.


High work speeds Safe deactivation with high repeat accuracy ±2% No downtimes caused by overload High cycle frequency of the bolting processes Shatterproof durable gearbox for long service lives Documented quality due to the Mounting-Documentation-System	Electrical torque multiplier with construc- tion site, suitable aluminum cast housing Operation at almost any voltage possible, even on mobile units Degree of protection IP54 – the big advan-tage in snow, rain, fog, dust and sand No power loss at higher operating tem-peratures Robust hydraulic torque wrenches,designed for cramped and difficult to access bolting processes.	100% emergency power-suitable (!) with- out performance losses Presetting option for torques, even when bolting with torque/angle method Menu-guided via large OLED display Can act as a test torque multiplier, because no over-turning possible High level of operating comfort due to simple single-finger rocker button

Our complete product range for wind energy

WE TAKE YOUR APPLICATION TO THE NEXT LEVEL

You have your application – we have the consulting knowledge. Together with you, we will find the right solution for your needs. With the alkitronic® bolting systems we work together on a high technical level: For the bolted connections and the wind turbine, all the way to calibration and documentation. We are very familiar with your type of system and its applica- tions. Depending on the requirements, we will put the right tool package together for you.

Our high level of service always results in a long-term system partnership. Give us a try, send us your enquiry.

Competence team & Project management for your application
Field service, Sales, Technical Support with technical consulting
Technical implementation of special supports
Fast implementation of special solutions, e.g. reaction recordings
After Sales support, increase of the Lifecycle Value
Employee training on location, e.g. repair of hydraulic units

Electrical torque multipliers with all-weather qualities

Electrical alkitronic® shut-off torque multipliers, ideal for extreme operating conditions in wind energy.

In the case of a large number of bolting processes, high speeds require a rapid working pace with high precision. Particularly in turbo-assembly applications, the devices show what they are made of. Unlike hydraulic wrenches, this eliminates the ratcheting “backward movement”, which re- sults in enormous savings in work time. Other advantages of continuous turning are higher precision due to the pre- cise achievement of torque, more reliable technology and low running costs. This is why the alkitronic® torque mul- tipliers keep performing reliably, even in spite of wind, weather and other environmental influences. Almost all models are available with protection class IP54 (protection against moisture and dust) and can therefore also be used in the rain and in the offshore area. From 100 Nm to 42,500 Nm, there is no faster and more precise bolting technology.

Your advantages:

Intelligent motor control guarantees precise achievement of the torque and high assembly speed
Repeat disengaging torque accuracy ± 2%
Higher service life due to low-wear and brushless motor
The IP54 models are protected against dust and rain
The devices can be used in all international power grids (100 to 253 V / 45 to 66 Hz) with constant torque accuracy
Modular software solutions for custom applications (e.g. torque/angle bollting method)
Bluetooth interface for communication and documentation of bolting processes (with alkitronic® App)

Almost all torque multipliers are also available in an angular version. The low height is specially designed for confined spaces. The alkitronic® EA is a battery-powered torque multiplier with high mobility, always ready to use and independent of external drive energy. The alkitronic® EF torque multiplier is also available with integrated LC display and torque/rotation angle method. The alkitronic® E is a robust, indestructible 2-speed torque multiplier.

Torque/angle bolting method: Highly precise and indispensable

This method is used in applications that need a higher bolting quality and require minimal friction: For example, when assembling or servicing rotor blade connections on the hub. Investigations showed that over 80% of the tightening torque is necessary to overcome the friction under the head and in the thread. In the torque/angle bolting method the friction coefficient in the thread and the bolt support no longer has an influence on the assembly preload force to be achieved.

If you want to exclude disturbances, you can rest assured with the models EFCip/ECWip. As a quality supplier, alkitronic® is always the right partner for other bolting methods.

Hydraulic torque wrenches

If the application determines the bolting method

In special industrial applications or due to technical requirements, hydraulic wrenches are often the only possible alternative to handle bolted connections. For example, in very cramped, hard to access bolting processes. Here, large tightening torques can be applied even in a small space.

As a rule of thumb, the following is applicable to alkitronic® hydraulic torque wrenches: A torque of about 1,000 Nm can be applied to the bolted connection per kg of torque wrench weight (operating pressure 700 bar). However, a hydraulic torque wrench works relatively slowly, but very precisely with ± 3 % accuracy. For a faster, reliable operation, we recommend our alkitronic® VELOX and NOVA hydraulic pumps.

alkitronic® AX and AT Hydraulic torque wrench.

Due to the high hydraulic pressure, the large torque and the resulting reaction forces, SAFETY is very important for our hydraulic torque wrenches. High-strength materials, backstops, handles, etc. ensure that the user has a safe tool at his disposal.

Secure, reliable and individually rotatable joint couplings
Both torque wrenches with dual-hose system
Minimal maintenance effort and costs

alkitronic® Norwolf X DRIVER SYSTEM.

The most revolutionary hydraulic torque wrench concept. No more individual solu- tions for different applications.

The convertible hydraulic drive head can be used for both a hexagonal output and a square output housing
Slim, sturdy steel design with one-piece piston construction. Only one O-ring: Quick change with four bolts
Perfect for bolting in extremely narrow and hard to reach areas.

alkitronic® Hydraulic torque wrench AX and AT

Very suitable if heavy bolted connections with large threads must be tightened in tight spaces with high forces. Even though they can not turn so quickly due to the“ratcheting”.

Hydraulic wrenches are ideal for use in explosive areas.
Or in wind turbines e.g. in the flange connection in the interior of the towers; during assembly or maintenance of rotor blade connections on the hub as well as when bolting the azimuth brakes.

Fast alkitronic® hydraulic pumps additionally speed up the bolting processes and save time and money.

alkitronic® AX Combination Torque Wrench, drive unit with dual-hose system and exchangeable hexagonal head. Torques of 60-49,000 Nm, hexagonal outputs SW 14-145 mm (type- dependent).

Extremely flat design with flush support of driving part and hex- agon head, hexagonal drive with extremely small housing radii
Simple handling and light-weight
Economic design with few single parts
High efficiency with minimal maintenance effort and costs
Robust and ergonomic: Durable housing design made ofhigh-strength aluminum alloy
Highly flexible: Simple, quick change of the hexagon head
No problem: Support without affecting the torque accu-racy by side load
Convenient, safe, reliable: Individually rotatable articulat-ed couplings (360°) can be loaded with up to 4 times higher max. operating pressure
Robust fine toothed ratchet for high torque accuracy and amaximum stroke of 28°
Constructive, precisely guided drive element

alkitronic® AT Hydraulic Torque Wrench with dual-hose system.Torques depending on type from 110 to 72,000 Nm, thread sizes as of M 14, square output from 3/4“ to 2 1/2“ (depending on type).

No monitoring effort: Thanks to repeat accuracy of ± 3%
Robust and ergonomic: Durable housing design made of high-strength aluminum-titanium alloy
Simple and easy: Uncomplicated handling, low weight; quick changeover of the output square from tightening to loosening
Long service life and safe: Torsionally rigid, heavy-duty one-piece construction. High work safety through mature and sustainable construction
Economic: Long service life, reliable bolting, low maintenance
Highly flexible: Comfortable, safe and reliable freely rotating universal joint, rotatable in two levels (360° horizontal, 180° vertical)
Robust coarse toothed ratchet, high torque accuracy
Solid, precise, efficient: Unique design of the drive handle

alkitronic® Norwolf X DRIVER SYSTEM

The advanced design:
The driver head (X-Driver) is the hydraulic drive with dual- hose system. Fast change without the use of bolts or pins. The X-Driver snaps perfectly into the A-Drive (hexagonal housing) or V-Drive (square housing), thus the drive cylinder is completely protected against damage caused by selective reaction forces that may occur. The X-Driver sits longitudinally, in line with the drive to prevent side loads or torsional forces on the cylinder. This ensures a long service life and safety.
Novel articulated joint:
Swivel-mounted by 360° or with only one additional element convertible to 360° x 360°.

A-Drive and X-Driver are suitable for more applications than any other torque wrench. Torques from 335-83,000 Nm, hex- agonal outputs SW 27-195 mm (depending on the type).

The patented design of the hexagonal drive ensures the longest reach, allowing for an extremely large angle of attack. This way the hexagon head easily fits on the nut – without rattling or manual adjustment of the ratchet. This design makes the X Driver System the fastest heavy-duty hydraulic torque wrench.

Slim design – Housing fully closed.
Optional one-piece reaction arm quickly mountable withtwo pins
The patented handle lock can be easily loosened with a bolt
Few assembly parts: Other cartridges have many movingparts, which can consequently lead to more defects andcomplex repairs
Incomparable application concept – suitable for all flanges
In tests, the A-Drive is 10-50% faster than other hydraulictorque wrenches

V-Drive and X-Driver combination

Hydraulic torque wrenches for torques from 265 to 65,300 Nm, square outputs from 3/4” to 2 1/2″ (depending on type).

The slimmest, completely closed square torque wrench on the market
The 40° stroke makes the torque wrench up to 30% faster per stroke
Repeat accuracy ±3%
Square output pluggable with ball lock
Versatile, patented reaction arm (DMA). Unlike compa-rable tools, the DMA does not have to be dismantled to displace it. Unique and highly flexible in its application. Can be adapted in all directionsThe following is applicable for the alkitronic® Norwolf Hy- draulic X Driver System:
An operating pressure of 100 – 700 bar is a prerequisite for the exact reproducibility of the specified torque ranges.

Hydraulic pumps, manual and cordless torque wrenches, MDS bolting technology

alkitronic® NOVA: High Speed in permanent operation, useable worldwide 100-253 V / 45-66 Hz.

The electric hydraulic pump alkitronic® NOVA is one of the fastest units on the market. Here, “idle working time” is deci- sively reduced during ratcheting.

Ideal in the wind energy sector:
Cost saving due to short assembly times.

Large flow rates through an intelligent electronic control and a powerful engine
Simplest automatic mode for all cylinder sizes without manual presetting

Manual or automatic operation with remote control
Robust compact housing, wear-free and suitable for con-struction sites
Delivered in the “Multibox” with eyelets and handles; certi-fied for crane transport

alkitronic® VELOX Pump: Innovative quality product with optional Speed Upgrade.

Operation with 110 V or 230 V as well as voltage-controlled mobile power units
Worldwide unique electric hydraulic pump with protec- tion class IP65
No cost-intensive downtimes: Protected against rain, splashing water and dust inside
The hydraulic pump is characterized by high working speedSimplest operation with ergonomic 1-button remote control

Low maintenance costs due to a maintenance-free and low-wear, brushless synchronous motor
No solenoid valve drive and therefore no wear
Integrated engine protection avoids overload damage
High working speed, short set-up time. A possible connec-tion of two hydraulic torque wrenches increases produc- tivity and reduces time and costs

alkitronic® Norwolf Missing LinkTM
up to max. 4,890 Nm, spanner sizes from 22 to 80 mm.

- The Missing Link TM torque multiplier is suitable for applica- tions with very limited space
- Standard tool in the wind power industry for generator feet and brake pads of hydraulic azimuth brakes. Available in gear ratio 4:1 or 6:1
- Usable with ratcheting or non-ratcheting torque wrenches alkitronic® Norwolf XCE LinkTMup to max. 9,760 Nm, spanner sizes from 24 to 120 mm
- The ultimate solution for applications where traditional torque multipliers are too big or too bulky
- Available in gear ratio 3:1 or 4:1
- Can be used with alkitronic® electric or cordless torque multiplierYour advantage with both models:Safe, stress-free working with robust tools

alkitronic® M manual torque multipliers are THE indispens- able service tool in wind energy. There should be at least one alkitronic® M in each service vehicle. alkitronic® M are not comparable in quality with conventional manual devices. They are an extremely helpful tool, especially in mainte- nance. They offer the fullest bolting quality without annoy- ing equipment and external energy.

	Low effort, precise transmission of high torques, high work safety Precision locking mechanism for highly effective working with very short ratcheting movements, ensures short assembly times Robust power transmission for heavy loads, manufactured in chipless precision process
	alkitronic® EA, battery-powered torque multiplier from 90 Nm to 4,000 Nm: Mobile and always ready to use. Extremely short bolting cycles: Fast gear for insertion and power gear for maximum torque and precision Compact form: For comfortable work in hard-to-reach areas or in the absence of power supply Efficient work: Easy, fast gear selection; wide range of torques (22 values) Gentle for your health: Low weight, ergonomic design, low noise emission; no noise protection measures necessary Low repair susceptibility: Robust motor housing made ofspecial plastic. Shatter-proof, impact-resistant andcorrosion-resistant Efficient: Two Li-Ion battery packs guarantee up to 360bolted connections in succession; LED charge level indica-tor directly on the battery Exact shutdown torque: Even when the charging status ofthe battery is low
	Mounting-Documentation-Systems. MDS Bolting technology 4.0 alkitronic® HSD (manual) / EASD (battery-powered): Torque-controlled bolting, measurement value logging and sensors directly on the output Menu-driven simple operation via OLED display Bluetooth interface for fast, complete acquisition andcontrol of bolting dataalkitronic® HSD: Transmission of preset bolting parameters and error-free insertion into the torque multiplier Torque/rotation angle method, creation of bolting processes with complex parameters Reproducible bolted connections – independent of disturbance variablesalkitronic® APP for iOS- und Android-Smartphones: Data transfer and communication via Bluetooth Platform-neutral export by means of CSV files

YOUR BENEFIT FOR MORE PERFORMANCE

Higher quality First-class production Usage of high quality material Long service life 30 years of experience in bolting technology Made in Germany – worldwide patents	Higher precision Accurate, customer-specific torques High repeat accuracy Reliability under permanent load Bolting process documentation Automatic cut-out
Higher productivity Quick bolting without rework No environmentally-caused failure (IP 54, ATEX) High work safety Simple operation – brief instruction Low-maintenance and cost efficient	Better service Technical consulting on location Education and training offers Plant calibration and certification Lifecycle support Spare part and repair service

Torque Multiplier for wind power – Alkitronic Germany Leave a comment

Hydraulic torque wrenches

If the application determines the bolting method

Hydraulic pumps, manual and cordless torque wrenches, MDS bolting technology

YOUR BENEFIT FOR MORE PERFORMANCE

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