Bomar Extend 2020.2020 Bandsaws (Bomar Extend 2020.2020 Bandsaws)

A semiautomatic band saw of a double-column construction, designed for perpendicular cuts of full, as well as pro le materials of large diameters. The outstanding cutting power of the machine results from the following features: a three-sided hardmetal band precision guide, a saw arm laid both-sided on preloaded linear guides, a 80 mm high saw band and lastly, a synchronous running brush for chips disposal.

The pedestal, frame and pillars in all Extend Series machines are lled with a polymer- concrete mixture developed by our company. In connection with preloaded, largely over- dimensioned guiding, the polymer-concrete technology allows the machine to perform cuts with almost no vibrations. Material clamping and arm downfeed are controlled hydraulically, while the material feed is manual.

The whole work cycle is completed at the press of a single button: the material is clamped, the saw band starts up, cutting is carried out, the arm is raised to the set top position, and the vice is opened.

After switching the machine to the manual mode, all functions of the machine may be controlled separately. All control elements are located on the freely- adjustable control panel. Material clamping is performed by a full stroke vice. The machine is equipped with a frequency convertor that allows the saw band optimal speed to be set against the processed material within the 15–90 m/min range; this signi cantly increases both the saw band lifetime and the machine’s productivity.

Standard equipment also includes automatic downfeed pressure regulation depending on the resistance of the processed material, and continuously adjust- able arm downfeed. The saw band is tilted against the vice load surface at a 2° angle for universal usage. Upon request, the arm may be tilted at 6° for an even shorter cutting groove in pro les and supports, which substantially shortens cutting times and contributes to a longer lifetime of the saw band.

Alternatively, the arm may not be tilted at all (0°) for processing full material. In connection with the feeding system, the saw may be extended to a fully automatic device.

Key features

• Two-column structure
• Hydraulic full-lift clamping vice
• Continuously adjustable saw arm feed to depth and pressure to depth
• Freely positionable control panel

• Handling System X/XP: The new X/XP handling system offers unprecedented flexibility for tailoring a handling system to individual needs and conditions. Load capacities and automation levels can be adjusted with perfect flexibility and modified at a later time. Besides the roll conveyor in a regular and propelled version, the X system comprises a rich array of options, from vertical rollers, to length measuring systems all the way to cross conveyor units and shifting devices. The load capacity can be customized by the number of rollers and support feet used. The roll conveyor's feed profile even allows varying roller and foot distances on the same roll conveyor unit. When needed, additional rollers and/or support feet can be installed at any time.

1. Saw band tension indicator: The saw band tension indicator provides permanent control of the band tension, even during the machine operation.
2. Micro-spray-system: For ideal cutting of pipes and profiles, the micro-spray unit applies a grease film on the teeth points and lateral sides of the saw band.
3. Hydraulic bundle clamping device: Device for clamping materials in layers and bundles with the use of an additional vertical clamping unit.
4. Downfeed speed readout: Allows easy and accurate reading of the current rate of descent of the machine arm into the cut.
5. Laser liner: The laser unit copies the exact line in the saw band axis to the material. Laser Liner allows precise adjustment of the marked material.
6. Workspace lighting: A LED lamp for lighting the workspace, adjustable and mounted on the flexible arm.
7. Third coolant supply: The third coolant supply is used for extra wide materials. The coolant supply is flexible and may be individually adjusted to the material shape.
8. Tenzomat: A precise measuring tool for the control of the saw band tension when a new band is installed.
9. Pistol for machine cleaning: Tool for fast and easy cleaning of the machine from chips and burrs.
10. Swarf removal system: Swarf extractor with grabs for an integrated system of collection in Proline machines. The saw is prepared for the chip remover installation, which may be Plug-and-Play connected.