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Swing Beam Shear

nc shear metal working

CMF Hydraulic Shears are designed and constructed to provide high-speed shearing of blanks with clean, square edges, and to exacting working tolerances.

All CMF Hydraulic Plate Shears feature the swing beam design ensuring consistently accurate parts while providing smooth, quiet operation. These cost efficient, quality shears are available in capacities from 1/4" - 3/4" and 98" - 194" cutting length. Unitized box construction provides for maximum rigidity and strength.

This simple design with swing beam upper blade, strong rigid frames, and constant minimum rake angle assures that the sheared blanks are precisely cut within a minimum of bow twist or camber.

CMF Hydraulic Plate Shears are equipped with the productive features and safety devices for optimum, accurate shearing performance found on more expensive units. Feature for feature, CMF Hydraulic Shears are a smart, economical choice for plate shearing.

Blade Gap Adjustment
A conveniently located adjustment on the touch screen enables the operator to accurately adjust the blade clearance on both sides of the machine simultaneously.

Electronic Stroke Adjustment
For faster stroke rates, the operator can quickly adjust the stroke length to suit the job. Smaller blanks require less stroke length, thus providing faster cycling of the beam.

Front-Controlled Power Back Gauge
The standard heavy-duty, motorized back gauge is front operated and adjusted through the touch screen PLC. The precision back gauge is two position -- "down" for positioning and shearing and "up" for clearance. The gauge stop, automatic "retreat" position allows for shearing pieces longer than the extended range of the back gauge. The gauge reads in inches or millimeters.

Rear Guards and Work Piece Recovery
The rear of the shear is protected by a full width gate. There is a new work piece receiver with ball transfers installed that allows easy retrieval of the sheared piece.

Swing Beam Design
The beam holding the upper knife pivots on large spherical roller bearings, while hydraulic cylinders mounted into the side frames generate the cutting pressure. At the end of each cutting stroke, the hydraulic pressure is released and return cylinders move the beam to the top of stroke. The back gauge design and its interconnection with the swing beam gives immediate clearance to the sheared material, allowing it to drop away without jamming the lower blade and back gauge. Less maintenance is required with the swing beam design, since guides and slideways are eliminated.

Rugged Construction
Stressed-relieved, unitized box construction of the table and extra thick, rolled steel frames provide maximum resistance to deflection and torsional force. Increased throat depth in the side frames allows for progressive slitting of strips longer than the blades. Due to swing beam design, there is no deflection at the throat area of the shear.

Minimum Rake Angle
Due to strong, rigid construction, swing beam design, and powerful hydraulics, CMF Hydraulic Shears feature a constant minimum rake angle for consistent quality shearing, at full capacity, with the least amount of distortion.

Pressure Sensing Hold Downs
Hold downs are synchronized with the upper blade travel to provide maximum hold down pressure at the moment of shearing, thus, assuring cutting accuracy. As shearing forces on the plate increase, the hold down pressure increases to provide optimum gripping action. The hold down feet can hold two or more plates of different thicknesses for simultaneous shearing on the same stroke. At one end of the shear, two hold downs are mounted close together for ease in cutting narrow strips.

Squaring Arm
All shears are equipped with a heavy-duty squaring arm which is mounted at precisely 90 degrees to the shear blades. The squaring arm has a recessed stainless steel rule in inch/metric. The shear is also equipped with ball transfers to facilitate even the heaviest jobs.

Modern Block Hydraulics
The hydraulic system is comprised of long life, heavy-duty components mounted on a common block. Tubes and connections are minimized, and access and seviceability are made easy. The internal gear pump is quiet and extremely reliable, and is rated for years of trouble-free service. The large capacity oil reservoir eliminates the need for oil cooler. A factory preset relief valve prevents overloading mechanical parts and the hydraulic circuit.

Hinged Inter-Locked Barrier Guards
The CMF Shear has a unique inter-locked barrier guard. This allows the operator to safely pick up one side of the guard in order to work short pieces. Lifting the guard disconnects power to the foot pedal. The shear will not operate until the guard is lowered into the down position.

Shadow Lighting
For fast, visual positioning of sheets with scribed lines or punch marks, an intense light is provided. The light source casts a precise shadow line for accurate positioning and shearing.

Hydraulic Cylinders
The cylinders are mounted in cutouts within the extra thick side frames for easy accessibility. Separate, nitrogen-filled, return cylinders are mounted behind the hydraulic cylinders. The return cylinders, independent from the hydraulic cylinders, automatically retract the blade to the top of stroke position during power shut down, emergency, ot after the cutting stroke is completed. They also act as counterbalance to the shear.

Blade Clearance Adjustment
The clearance between the blades determines the quality of the cut edge and the thickness of metal that can be cut on a specific shear. Excessive clearance can produce a deformed, burred edge, while insufficient clearance usually results in a secondary shear or broken edge. Proper blade clearance normally produces clean, square edges on every part.

Quality Blades
Shears up to 1/4" capacity are equipped with high carbon, high chrome blades. All models, 3/8" capacity and above, are furnished with "shock resistant" steel blades.

Specification / Parameter Max. Shearing Thickness mm Max. Shearing Width mm Shearing Angle Number of Stroke Backgauge Raing mm Motor power kw Net weight kg Sizemm
CSS425 .157" 4MM
98" 2500MM
1°30'
20
24" 605MM
7.2HP 5.5KW
8300Lbs 3800 KG
3130×2030×1600
CSS430
.157" 4MM
125" 3200MM
1°30'
20
24" 605MM
7.2 HP 5.5 KW
12,32LBS 5,600KG 3840x2175 x1600
CSS440
.157" 4MM
157" 4000MM
1°30'
18 24" 605MM
7,2 HP 5.5KW
15,400LBS 7,000KG
4640×2320×1600
CSS625
1/4" 6MM
98" 2500MM
1°30'
18 24" 605MM
10 HP 7.5KW
11,440LBS 5,200KG
3130×2320×1600
CSS630
1/4" 6MM
125" 3200MM
1°30'
16 36" 914MM
10HP 7.5KW
14,300LBS 6,500KG
3840×2320×1620
CSS640
1/4" 6MM
157" 4000MM
1°30'
14 1-1/2" 10HP 7.5KW
18,700LBS 8,500KG
4630×2495×1700
CSS660
1/4" 6MM
240" 6000MM
1°30'
6 D1-4 12HP 9KW
36,960LBS 16,800KG
6645×2530×2250
CSS825
5/16" 8MM
98" 2500MM
1°30'
14 45-1800 15HP 11KW
13,640LBS 6,200KG
3140×2345×1620
CSS830
5/16" 8MM
125" 3200MM
1°30'
12 .0012 - .0294" 15HP 11KW
16,060LBS 7,300KG
3850×2345×1620
CSS840
5/16" 8MM
157" 4000MM
1°30'
10 .0006 - .0147 15HP 11KW 21,120LBS 9,600KG
4630×2495×1700
CSS860
5/16" 8MM
240" 6000MM
1°30'
6 0.45-7.5 MM 20HP 15KW
38,720LBS 17,600KG
6650×2845×1700
CSS1225
1/2" 12MM
98" 2500MM
1°30'
12 4-112 TPI 24HP 18.5KW
21,120LBS 9,600KG
3235×3050×2100
CSS1230
1/2" 12MM
125" 3200MM
1°30'
10 6" 24HP 18.5KW
26,400LBS 12,000KG
3945×3050×2100
CSS1240
1/2" 12MM
157" 4000MM
1°30'
8 3-1/2" 24HP 18.5KW
31,900LBS 14,500KG
4745×3210×2200
CSS1260
1/2" 12MM
240" 6000mm
1°30'
5 4-3/4" 29HP 22KW
64,900LBS 29,500kg
6745×3430×2300
CSS1625
5/8" 16MM
98" 2500mm
8 MT#3 29HP 22KW
26,840LBS 1,220KG
3410×3230×2230
CSS1630
5/8" 16MM
125" 3200MM
7 3 HP 29HP 22KW
31,900LBS 14,500KG
4120×3230×2230
CSS1640
5/8" 16MM
157" 4000MM
6 76" 29HP 22KW
39,160LBS 17,800kg
4920×3330×2700
CSS2025
3/4" 20MM
98" 2500MM
2°30' 8 30" 48.5HP 37kw
38,500LBS 17,500KG
3420×3330×2700
CSS2030
3/4" 20MM
125" 3200MM
2°30'
7 65" 48.5HP 37kw
56,100LBS 25,500KG
4180×3330×2700
CSS2040
3/4" 20MM
157" 4000MM
2°30' 6 1,540 lbs 48.5HP 37kw
63,800LBS 29,000KG
4980×3480×2830
CSS2525
1" 25mm
98" 2500MM
2°30'
8
36" 914MM
59HP 45KW
52,800LBS 24,000KG
3480×3430×2700
CSS2530
1" 25MM
125" 3200MM
2°30'
7 36" 914MM
59HP 45KW
70,400LBS 32,000KG
4180×3430×2700
CSS2540
1" 25MM
157" 4000MM
2°30'
6
36" 914MM
59hHP 45KG
86,900LBS 39,500KG
4980×3580×2800
CSS3225
1-1/4" 32MM
98" 2500MM

6
36" 914MM
72HP 55KW
72,600LBS 33,000KG
3760×4405×3150
CSS3230
1-1/4" 32MM
125" 3200MM

6
36" 914MM
72HP 55KW
89,100LBS 40,500KG
4590×4405×3150