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AMBA boltmakers and other cold forming machines are found in the fastener industry worldwide |
| Year established : |
1908 |
Business : |
Manufacturer |
Bolt Makers•
Rod Headers•Thread Rollers•Wire Straighteners•Wire Feeders•Coilers•
Spoke Machines•Spoke Swaging Machines•Nipple Automatons
The company Aachener Maschinenbau (AMBA) was founded in Aachen in 1908. About 50 years ago AMBA started manufacturing machines for production of spokes and nipples for bicycles and motorbikes. Based on these products the first AMBA boltmaker was developed.
Today AMBA boltmakers and other cold forming machines are found in the fastener industry worldwide. Main advantage of AMBA boltmakers is their modular set-up which combines heading and threading in one machine including the possibility of two different threads on the blank. A full-size AMBA BM 12 for example includes cutting, heading, extruding, pointing and threading for screws and bolt up to ½" in diameter and 60" in length. A high-speed AMBA 68 for screws size ¼" x 10" is capable to produce up to 230 ppm.
The first flat die thread roller worldwide to produce full threaded screws up to 600 mm (24") in length was developed in 2005. This machine can be equipped with dies up to 12" in length. Currently AMBA is projecting a new generation of flat die thread roller with dies up to 24" in length.
In 2007 AMBA started production of tools and machines for tube bending as a new product line, taken over from another manufacturer.
After the first 100 years of cold forming history AMBA will soon move from the heart of Aachen to an industrial estate nearby to improve logistics, increase the working space for their employees and get a scope for further development.
Innovation, tradition, quality, customer orientation – these are the target values fort he German mechanical engineering company AMBA. Well-known companies of the fastener industry as well as bicycle and motorbike manufactures are part of our clientele. This is something we are proud of.
 | WIRE PROCESSING Machines BoltMaker
Rod-Header
Flat-Die Thread-Roller
Straightening Machines
References |  | BENDING TOOLS Hydraulic Tube Benders and Hand Benders |  | BoltMaker Our BoltMaker combines two-step heading, reducing, pointing and thread-rolling as completely automatic high-speed applications in one machine, independent of the length of the products, without any additional handling – a major advantage against any combination of separate units. The most significant advantage of our BoltMaker however is it’s modular concept. This way each machine can be exactly focussed on our customers’ needs and specially designed to user specifications. Any completion or upgrading which might become necessary at a later stage may already be considered during design and construction of the machine and will so allow for an immediate reaction to changing markets and conditions.
infinitely variable drive
full power also at low speed
all movements mechanically combined
programmable logic control
central lubrication system
centralized supply of cooling lubricants
Wire feeding is operated by servo-engine and reaches a maximum length tolerance of ±0.05 mm (±.002") without additional trim cut. The compact machine only requires little space and may be installed without foundation or baseplate. As a matter of course we are also prepared to supply straighteners, decoilers and further peripheral equipment adjusted to the machine capacity.
|  | Flat-Die Thread-Roller Partly due to EU regulations - the demand of fully threaded screws for wood construction has continuously increased on the European market. Following this demand we developed a Flat-Die Thread-Roller for the production of fully threaded screws in 2005. The prototype had been designed and manufactured for a maximum thread length of 600 mm (24").
The main difference and also the main advantage against other systems is the horizontal feeding of the blanks, similar to our BoltMaker. The successful operation of the prototype has led to the manufacturing of further machines designed for a maximum thread length of 800 mm (32").
powered by frequency controlled three phase AC motor
full power also at low speed
all movements mechanically combined
programmable logic control
central lubrication system
centralized supply of cooling lubricants
As a further option the machine may also be equipped with a pointing unit or the Thread-Roller and our BoltMaker may be interlinked. Other applications for the machine concept are currently under investigation. Also a combination with a hydraulic drive might make sense in order to offer a wider range of applications.
|  | Hydraulic Tube Benders For bending of gas-pipes, water-pipes, tubes for gasoline-stations and boiler-tubes we supply hydraulic tube benders consisting of frame, counter-brackets and hydraulic pump.
Alternatively the benders are supplied with an open or hinged frame. The pumps are either hand-pumps or fitted with electro-drive for 240 V or 400 V A/C. Dependent on the type, the standard bender will be supplied with segments for 90° bending of pipe diameters up to 3” starting from 3/8”. We can also deliver metric segments or supply segments for bending up to 180°.
For tubes with smaller wall-thickness we manufacture a special type of bender – again with hand-pump or electric pump and the appropriate sets of bending segments.
|  | MACHINES FOR THE BICYCLE AND MOTORBIKE INDUSTRY Spoke Machines
Spoke Swaging Machine
Nipple Automaton |  | Rod-Header For heading or ulterior cold-forming of wires with up to 20 mm (3/4") in diameter we design and manufacture mechanical and hydraulic rod headers with a production capacity of 5 to 50 ppm (hydraulic) and up to 230 ppm (mechanical).
Depending on their range of application the machines are equipped with either one or two heading units. Each unit can take up to two heading tools. If requested the rod header can also be designed for simultaneous heading of both ends of a blank.
Feeding of the blanks can be either manual or automatic. The blanks can be fed pre-cut and straightened from a magazine or directly from a coil via our decoiler WFS and our cutting system.
Adjusting the wire diameter as well as the length of the product can be provided variable to a large extend. The heading stroke may be up to 400 mm (16").
Examples for the use of our Rod-Header
Stud-bolt blanks, muffle-hangers, mandrels, building bars
|  | Spoke Machines Spoke machines are the origin of today’s BoltMaker for screws and bolts. The spoke machines of the fi rst generation were built some 50 years ago. The current generation, the 5th generation of this group of machines, called SpM II includes our feeding System WFS with a cutting tolerance of ± 0,05 mm (± .002"). Like our BoltMaker, all production steps of our SpM II are combined in one machine. Production capacity is infi nitely variable up to 300 spokes per minute.
Spoke Press
For production of fl at spokes we offer a special combination consisting of a spoke machine and a press.
|  | Straightening Machines Machines for the straightening of long bolts and screws after heat treatment have been part of our production programme for many years. These machines are designed to straighten the screws and bolts in the thread-free shank area only. In the past this was completely sufficient.
For the new fully-threaded screws, however, these machines cannot be used, because the thread would be damaged by the straightening rolls.
Therefore we developed a new generation of straightening machines specially designed for fully-threaded screws up to 800 mm (24") in length, using profiled straightening rolls that fit the respective threads. Feeding the parts into the machine is effected by our approved spindle system, machine capacity approx. 30 parts per minute.
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