Incredible modularity meets enormous application variety! The completely new product line Makro•Grip Ultra offers countless clamping possibilities and can be changed quickly and easily at the same time. Watch the short demonstration video showcasing the flexibility of Makro•Grip Ultra.
Thanks to the expandability of its modules Makro•Grip Ultra is capable of clamping parts of 810 mm length and beyond safely. With its size it pushes the LANG workholding to new heights and is suitable for mould making and clamping applications of flat and large parts.
Different system heights, individually expandable clamping ranges, interchangeable clamping jaw types and useful accessories – Makro•Grip Ultra is extremely flexible and equally applicable for single part or multiple clamping, cubic, round or asymmetrical workpieces. Through its wide range of possible configurations the modular system practically covers any imaginable clamping application.
→ Clamping ranges up to 410/610/810mm, flexibly extendable
→ 3 different system heights: 45/109/189mm
→ 3 different, interchangeable clamping jaw types
→ Based on the Quick•Point 96 zero-point clamping system
1. Makro•Grip Ultra Clamping Jaw
The Makro•Grip Ultra clamping jaw which is made from solid is available in two different types, either with a clamping depth of 3 mm or 5 mm. The clamping jaw has the same serration as regular Makro•Grip 5-Axis Vices and grips the workpiece by form-closure effect. This way highest holding forces can be accomplished, gently and virtually wear-free. Additionally LANG offers a hardened jaw without serration but with a plain clamping step (clamping depth 16 mm) which is making use of the Avanti dovetail technology. This means that also regular Avanti top jaws can be mounted, in order to clamp parts that are not cubic. More information about the different jaw types can be found by clicking here.
2. Base Body
The case-hardened, robust base body with integrated zero-point interface impresses with its simplicity, however it offers some technical refinements. Available are two different lengths, each in three different heights. Clamping ranges of 410, 610 and 810 mm are realised when putting them together in different compositions. The base bodies are positioned so accurately that you almost do not notice the transition from one base to the other when sliding the clamping jaws over the rails. Thanks to the exact spindle seat an exceptionally high centring accuracy is achieved. Different centring plates mounted to the inner ends of the base bodies allow for clamping parts either centrically or in combination with a centre jaw multiple parts can be clamped. The base bodies also have a practical snap-in function which makes it easier to locate the jaws.
3. Threaded Cap
Each clamping jaw is individually secured by a threaded cap and thus can be moved independently from other clamping jaws. Removing the threaded cap with a mag- net allows the clamping jaw's position to be shifted quickly without actuating the spindle.
4. Spindle
The spindle (M 26 x 2) comes in three different lengths and is equally used for single-part and multiple clamping. For clamping ranges beyond 800 mm the spindle can be ordered as a customised solution in a longer version. The actuation torque is 170 Nm.
5. Quick•Point Zero-Point Clamping System
The interface between Makro•Grip Ultra and the machine table is the ultra-precise Quick•Point zero-point clamping system. Depending on requirements and workpiece size, its 96mm grid allows supplementary base bodies to be placed next to each other and connected with each other.
6-face machining without changeover - One of the main advantages of Makro•Grip Ultra is its ability to machine all six faces of a workpiece without a changeover. Depending on the requirements of the workpiece the operator can choose between different approaches and configurations for the first and second operation. In this example the workpiece was initially clamped using the Avanti technology. Before flipping around the workpiece four threaded bores were drilled in order to attach Quick•Point clamping studs. The second operation was done by clamping the workpiece directly in the 5-axis riser of the zero-point clamping system.
Clamping multiple parts - Centre jaws can be used for clamping multiple parts simultaneously – both with serration or plain clamping steps. A special type of centring plate at the inner ends of the base bodies ensures that the spindle has a clearance of 4 mm to compensate for workpieces that are not identically long.
Asymmetrical parts - Each clamping jaw is individually secured by a threaded cap and thus can be moved independently from other clamping jaws. Therefore allowing asymmetrical and shaped parts to be clamped. Here the first operation was done using the Makro•Grip Ultra serrated jaws. The part was then finished with Avanti jaws with an asymmetrical jaw positioning.
Automated manufacturing - Batch production of smaller parts at night, larger parts manually during the day? No problem with Makro•Grip Ultra! Depending on the machine table's size you can do both without removing the fixtures from the table. This provides a maximum of flexibility to cover a huge variety of workpieces with one single machine. An increased machine utilisation also has positive effects on the cost structure of the machined parts.
Modularity - The modularity and small number of components, as well as the consistent Quick•Point 96 zero-point grid allow to change the clamping setup immediately. Adding base bodies to increase the clamping range, a complete exchange of base bodies to alter the system height and changing jaw types can be done in a few simple steps without special tools.
Easy setting and cleaning - Just as quickly as it is set up, Makro•Grip Ultra can be disassembled. Clamping jaws and spindles are removed easily which simplifies cleaning and maintenance after and in between machining processes. Clamping tasks that are performed with other fixtures are possible even without having to remove the Makro•Grip Ultra system. Accessibility still remains and the risk of swarf clogging is low.
Quick jaw adjustment - By removing the threaded cap with a magnetic handle the position of the clamping jaws can be changed in no time without actuating the spindle. Despite their high accuracy of fit the clamping jaws glide smoothly over the guide surface. The threaded cap is kept in place by two extremely resilient hexagon screws (5 mm) which are opened/locked with half a turn.
Scale and snap-in function - For a quick adjustment into the desired position the clamping jaws feature an integrated snap-in function as an orientation aid where the operator feel resistance every 48 mm. Each base body also has a scale which provides a visual aid when positioning the clamping jaws.
Centre flexibility - The Makro•Grip Ultra spindle is solely fitted between two high-precision centring plates which allows for a quick and comfortable setup process. In order to offer an additional resting surface and to limit possible vibrations, a support jaw can be mounted to the centre of the clamping system.
A centre top jaw (serrated or with plain clamping steps) allows for clamping multiple parts. In this case centring plates are used which makes it possible to clamp workpieces with a 4 mm variance in length. Even without centre top or support jaw the centre base jaw can be used as a resting surface.
Hydro•Sup screw jack - A specific hydraulic screw jack and spacers to match the respective height of the base bodies have a supporting effect on the clamping process which is particularly important with flat and wide material. The screw jack which is actuated by a socket wrench adapts to the workpiece with its self-aligning support and reduces vibrations, which contributes to an increased surface quality.
Hydro•Sup is mounted and fixed just like any other LANG workholding device with its clamping stud to the Quick•Point zero-point clamping system. Due to its height of 86 mm the Hydro•Sup screw jack can also be used – without spacers – when clamping overhanging parts in a regular Makro•Grip 5-Axis Vice 125.
→ Mould making
→ Plate clamping
→ Fixture construction
→ Large parts
→ Deformation-sensitive parts
