A portable band saw has a substantially equally balanced weight in the lateral direction. The portable band saw includes a battery mount to which a battery is attachable, a motor driven with electric power from the battery, a band saw blade being endless and rotatable with power generated by the motor, a body supporting the motor and the band saw blade, and a handle including a support connected to the body and extending in a vertical direction, and a grip connected to the support and extending in a front-rear direction. The motor has a center on one side of a center of the handle, and the battery has a center on another side of the center of the handle in a lateral direction.

A portable band saw has a substantially equally balanced weight in the lateral direction. The portable band saw includes a battery mount to which a battery is attachable, a motor driven with electric power from the battery, a band saw blade being endless and rotatable with power generated by the motor, a body supporting the motor and the band saw blade, and a handle including a support connected to the body and extending in a vertical direction, and a grip connected to the support and extending in a front-rear direction. The motor has a center on one side of a center of the handle, and the battery has a center on another side of the center of the handle in a lateral direction.

A sawmill for cutting logs in successive bi-directional passes that includes a pair of horizontally extending beams, a carriage assembly and a saw head mounted atop the carriage assembly. The saw head includes a band saw drive source and at least one set of first and second band saw blade wheels. First and second band saw blades partially circumscribe the first and second band saw blade wheels with the cutting edge of the first and second band saw blades directed oppositely from one another so that as the carriage assembly and saw head travel along the frame the log is cut by the first saw blade and as the carriage assembly and saw head reciprocates on the beams in the opposite direction, a second section is cut from the log by the second band saw blade.

A band-sawing check valve device is provided. The band-sawing check valve device includes a main wheel, a transmission assembly, a driving assembly and a check valve assembly. The transmission assembly is linked to a transmission shaft. The transmission shaft is disposed to the transmission assembly, the driving assembly drives the transmission shaft to drive the main wheel, and the check valve assembly is used to limit the rotation of the main wheel in a single direction.

A profiling saw with band knife loop take-up and payoff compensation includes an endless circulating band knife which is guided around a plurality of band knife pulleys so the take-up and payoff adjustment is provided of the loop circulation path shape. The take-up and payoff system operates to move a pulley in the vertical plane for allowing the band knife to maintain its cutting orientation during movement and providing for more rapid and precision cuts into a workpiece.

A profiling saw with band knife loop take-up and payoff compensation includes an endless circulating band knife which is guided around a plurality of band knife pulleys so the take-up and payoff adjustment is provided of the loop circulation path shape. The take-up and payoff system operates to move a pulley in the vertical plane for allowing the band knife to maintain its cutting orientation during movement and providing for more rapid and precision cuts into a workpiece.

A band saw machine includes a base having a cutting fluid reservoir, a saw blade housing movable in an up-down direction, a pair of saw blade wheels around which a band saw blade are wound, a downstream main vise having a pair of downstream main vise jaws for clamping a product correspondent portion of the workpiece, a discharge table for discharging a product to an outside of the cutting fluid reservoir, and a product feed mechanism that feed the product cut out from the workpiece to a side on an upstream end of the discharge table. A working-side running area of the band saw blade and a working-opposite-side running area of the band saw blade are positioned within the cutting fluid reservoir, and the upstream end of the discharge table is positioned on a downstream side from a wheel center line connecting centers of the pair of saw blade wheels.

A device for cutting a mat or panel made of mineral wool or a board or panel made of porous construction material, including a system for moving the mat or panel made of mineral wool or the board or panel made of porous construction material, which includes at least one conveyor, capable of moving along a direction, an endless diamond element designed to cut the mat or panel made of mineral wool or the board or panel made of porous construction material, a device for running the endless diamond element in a direction perpendicular to the direction of movement of the mat or panel made of mineral wool or the board or panel made of porous construction material, the endless diamond element being an endless diamond wire, an endless diamond cable or an endless diamond strip.

A handheld band saw includes a housing, a handle coupled to the housing and configured to be grasped by a user during a cutting operation, a motor supported by the housing, and a drive wheel assembly rotationally driven by the motor. The drive wheel assembly at least partially disposed within the housing. The band saw further includes a saw blade driven by the drive wheel assembly. The saw blade is configured to cut a workpiece during the cutting operation. The band saw further includes a pipe reamer attachment coupled to the drive wheel assembly. The pipe reamer attachment is configured to deburr the workpiece after completion of the cutting operation.

A saw with a monitoring and safety system that utilizes vision and sensors designed to provide user feedback on safety and training. The saw having a wheel formed of an anodized main body with a non-anodized surface extending along the circumference of the groove of the wheel. The saw having low inertial energy design to stop the blade without mechanically grabbing the blade assuring multiple points of safety detection and triggering. The saw having an automatic guard to protect the user from slipping and hitting the blade even when the saw is not running. The saw being connected to a cloud based system that enables a safer ecosystem and cross statistic sharing of safety parameters.