Semi-automatic Double Head Mitre Saw Aluminum Profile Cutting Machine

Shandong Lebulang Precision Machinery Co., Ltd., operating under the Lebulang Machine brand, has been manufacturing aluminum and PVC processing equipment at its Jinan, China factory since 1996. This semi-automatic double-head mitre saw cuts aluminum profiles for windows, doors, curtain walls, and industrial frames. It handles profiles up to 350 mm wide and 150 mm high, with horizontal cutting angles from 45° to 135° and vertical angles from 45° to 90°. Two 4 kW motors drive the saw blades at 2800 rpm, and the right head moves on linear guides with rack-and-pinion transmission for length positioning. A five-axis full-closed CNC system controls angle and length positioning, while the cutting feed rate is steplessly adjustable from 0 to 3 m/min.

Technical Parameters

Features

• Large-section profile cutting: The Semi-automatic Double Head Mitre Saw Aluminum Profile Cutting Machine is designed for two-dimensional compound angle cutting of large aluminum profiles. It handles widths up to 350 mm and heights up to 150 mm, covering standard curtain wall and industrial extrusion sizes.
• Five-axis full-closed CNC system: Angle and length positioning are controlled by a five-axis CNC system with closed-loop feedback. This maintains angle tolerance within ±5′ and repeat length tolerance within ±0.2 mm under normal operating conditions.
• Movable saw head transmission: The right cutting head moves on a linear guide pair with rack-and-pinion drive. This arrangement supports the rigidity needed for accurate length positioning over the full 6000 mm cutting capacity.
• Precision pivot bearings: The saw head rotation uses crossed cylindrical roller bearings, which provide stable, low-friction angular movement. This design contributes to smooth angle adjustment and reliable locking at the set position.
• Enhanced rocker arm structure: The saw blade is mounted on a reinforced rocker arm that swings upward from beneath the worktable. This configuration produces a smooth, clean cut surface on the profile and improves overall cutting stability.
• Under-table blade swing: The blade feed direction is from below the worktable, which helps keep the operator's hands away from the cutting zone during the cycle.
• Integrated lubrication and cooling: A mist lubrication and cooling device moves with the saw blade, applying cutting fluid directly to the blade teeth and cutting area. This helps extend blade service life and improves cut quality on aluminum.

How It Works

The Semi-automatic Double Head Mitre Saw Aluminum Profile Cutting Machine operates with the operator setting the desired horizontal and vertical cutting angles, as well as the cut length, on the CNC control panel. The right cutting head moves automatically along the linear guide to the programmed position. Aluminum profiles are placed on the roller support tables and secured by pneumatic clamps. Both heads can cut simultaneously or independently. During the cutting cycle, the saw blades swing upward from beneath the worktable, cutting through the profile with a controlled feed rate between 0 and 3 m/min. The mist lubrication system activates during the cut. After the blades retract, clamps release and the cut pieces are removed. The five-axis closed-loop CNC system monitors and adjusts the position to maintain accuracy across batch cutting.

Key Components

• Saw motors (2 × 4 kW): Each cutting head is driven by a 4 kW motor spinning at 2800 rpm. The power is matched to the blade diameter and the cutting cross-section capacity of 350 × 150 mm.
• Linear guide and rack-and-pinion: The movable right head rides on a precision linear guide and is positioned by a rack-and-pinion drive. This transmission provides the rigidity and accuracy required for length positioning over the 6000 mm bed.
• Crossed roller bearings: Used at the saw head pivot for angular adjustment. These bearings provide high rigidity and smooth rotation with minimal backlash.
• Five-axis CNC controller: Manages the horizontal and vertical cutting angles, length positioning, and feed rate. The closed-loop system uses feedback from encoders to maintain positioning accuracy.
• Mist lubrication system: A nozzle assembly that moves with the saw blade, delivering atomized cutting fluid to the cutting zone. This reduces friction heat and helps prevent aluminum chip welding on the blade teeth.
• Pneumatic clamps: Hold the profile in position during cutting. Clamping pressure is adjustable through the air regulator.

Applications

The Semi-automatic Double Head Mitre Saw Aluminum Profile Cutting Machine is used for cutting aluminum profiles in window and door production, curtain wall fabrication, solar panel frame manufacturing, and general industrial aluminum processing. It handles solid and hollow extrusions, thermal break profiles, and light non-ferrous metal sections within the specified cutting capacity.

Manufacturer & Support

Shandong Lebulang Precision Machinery Co., Ltd., operating as Lebulang Machine, has produced aluminum processing equipment at its Jinan, China factory since 1996. The Semi-automatic Double Head Mitre Saw Aluminum Profile Cutting Machine is supplied factory-direct with CE and ISO certification. A one-year warranty covers the main structure. Remote technical support, operation videos, and an English manual are included. Spare parts are stocked for dispatch. Voltage, cutting length, and clamping options can be customized at the time of order.

FAQ

Q1: What types of profiles can this saw cut?

A: It cuts aluminum profiles up to 350 mm wide and 150 mm high, including solid bars, hollow extrusions, and thermal break profiles. It is also suitable for light non-ferrous metals and some PVC profiles.

Q2: Can it cut compound angles?

A: Yes. The machine performs two-dimensional compound angle cutting, with the horizontal angle adjustable from 45° to 135° and the vertical angle from 45° to 90°.

Q3: What is the cutting accuracy?

A: Repeat locating length tolerance is ±0.2 mm, and cutting angle tolerance is ±5′ under standard operating conditions with properly maintained blades.

Q4: Is the right head positioning automatic?

A: Yes. The right head moves automatically along the linear guide to the programmed position via the five-axis CNC system. The operator enters the desired length on the control panel.

Q5: What is the minimum order quantity and delivery time?

A: The minimum order quantity is one set. Standard delivery time is typically 15–25 working days after deposit receipt, depending on the current production schedule.