The present disclosure relates to a cutting machine comprising a rotating cutting wheel for performing separating cuts in a workpiece, and also relates to a workpiece positioning device for such a cutting machine. The cutting machine comprises a cutting wheel and a drive motor for driving the cutting wheel, a clamping means for clamping the workpiece, means for mechanically positioning the workpiece along one or two translational directions and additionally about one or two rotation axes, and a lifting mechanism for setting the cutting wheel on the workpiece to perform separating cuts in the positioned workpiece using the cutting wheel.

A wet cutting saw for cutting a ground portion, the wet cutting saw including a blade rotatable about an axis, a liquid feed conduit for feeding liquid onto a surface of the blade as it rotates, a frame for carrying the blade and configured to travel over a surface of the ground portion, and a mounting assembly that mounts the blade to the frame, at least part of the mounting assembly pivotable relative to the frame to raise and lower the blade relative to the frame.

A cutting device may include a friction reducing device arranged in an operational force transmission path between an operation member and a fixing device that can fix a circular cutter to a rotational shaft of a cutting unit.

The present disclosure relates to a cutting machine comprising a rotating cutting wheel for performing separating cuts in a workpiece, and also relates to a workpiece positioning device for such a cutting machine. The cutting machine comprises a cutting wheel and a drive motor for driving the cutting wheel, a clamping means for clamping the workpiece, means for mechanically positioning the workpiece along one or two translational directions and additionally about one or two rotation axes, and a lifting mechanism for setting the cutting wheel on the workpiece to perform separating cuts in the positioned workpiece using the cutting wheel.

The disclosure provides a sawing machine, including: a base; a main workbench rotatably connected to the base, an upper surface of the main workbench being provided with a chute, the chute extending in a first direction; a machine body slidably connected to the main workbench, a sliding direction of the machine body being parallel to the first direction, the machine body being provided with a motor and a saw blade connected to the motor; an auxiliary workbench being slidably inserted into the chute and protruded out of the chute from an open end, an upper surface of the auxiliary workbench is provided with an elongated groove, the groove extends in the first direction, the groove and the chute are in communication in the first direction and form an extendable saw blade slot. In the present disclosure, the cutting distance of the sawing machine can be extended, without increasing the overall volume of the sawing machine, increasing the packaging size, and increasing the transportation cost.

A miter saw includes a base, a table pivotally coupled to the base about a miter axis, a saw unit coupled to the table for movement with the table about the miter axis, and a fence having a stop protruding from a rear surface thereof that is engageable by the table and/or the saw unit to limit miter angle adjustment of the saw unit.

A chop saw power tool for cutting metal is described. The chop saw power tool has a saw base and a cutting head assembly. The saw base has: a support structure and a workpiece support table having a workpiece support surface to receive a workpiece. The workpiece support table is rotatable in a plane of the workpiece support surface relative to the support structure to select an angle of cut of the workpiece. The cutting head assembly has: a circular cutting blade on the cutting head assembly and an axis of rotation such that the circular cutting blade rotates within a cutting plane arranged in a fixed orientation perpendicular to the plane of the workpiece support surface. The cutting head assembly is pivotable relative to the saw base in a direction parallel to the cutting plane. The cutting head assembly is linearly moveable relative to the workpiece support table.

The disclosure provides a sawing machine, including: a base; a main workbench rotatably connected to the base, an upper surface of the main workbench being provided with a chute, the chute extending in a first direction; a machine body slidably connected to the main workbench, a sliding direction of the machine body being parallel to the first direction, the machine body being provided with a motor and a saw blade connected to the motor; an auxiliary workbench being slidably inserted into the chute and protruded out of the chute from an open end, an upper surface of the auxiliary workbench is provided with an elongated groove, the groove extends in the first direction, the groove and the chute are in communication in the first direction and form an extendable saw blade slot. In the present disclosure, the cutting distance of the sawing machine can be extended, without increasing the overall volume of the sawing machine, increasing the packaging size, and increasing the transportation cost.

A device for ventilating a burning building that includes, a chassis; and a cutting assembly, mounted on the chassis. The cutting assembly is adapted to cut a ventilation hole in a roof or wall member of a building either autonomously or under remote control by an operator to allow smoke and/or hot gases to escape from the roof space.

A wet cutting saw for cutting a ground portion, the wet cutting saw including a blade rotatable about an axis, a liquid feed conduit for feeding liquid onto a surface of the blade as it rotates, a frame for carrying the blade and configured to travel over a surface of the ground portion, and a mounting assembly that mounts the blade to the frame, at least part of the mounting assembly pivotable relative to the frame to raise and lower the blade relative to the frame.