CLAMPING CYLINDERS

In modern industry the precision of machining, the quality of the product, staff and plant safety, as well as quick clamping and release of the pieces being machined, are essential factors in the company’s productivity and competiveness.Thanks to their compactness and efficiency, OLMEC high pressure clamping systems significantly reduce times. Constructed using heat-treated titred steel, with low-friction bronze guides, they are assembled with seals of various types such as lled Te on, Polyurethane and O-rings. The maximum temperature of the pressurized uid must not exceed 60°C; if higher temperatures are envisaged, specify this on order so that the cylinders can be tted with suitable seals.In order to ensure that the cylinders give satisfactory service users are advised to bear in mind a few fundamental rules:oil temperature 0°C + 40°C; ambient temperature +5°C + 40°C; hydraulic fluid viscosity 3°E / 50°C – ISO 32 / 46. For design of an optimum piece of clamping equipment, a number of key points must be analysed carefully:number of pieces to be machined and production frequency; type of machine tool used and the machining times required; type of cylinder to be used in relation to the clamping forces required (see comparative table below) In the design phase, ensure that most of the cutting forces generated by the tool are absorbed by the equipment and not by the clamping cylinders; this will reduce the costs necessary to clamp the pieces.
  • 100

    100

    THREADED CYLINDER WITH SPRING RETURN
    The fully-threaded body allows easy adjustment on production machinery. Can be screwed straight onto the equipment or fixed with suitable supports. The piston, with threaded hole for fixing any tips (except for Models C81-100 and C81-101) is produced in casehardened steel, and the threaded body is in heat-treated steel for automatic machines.Special versions can be produced on request.WARNING: Series 100 cylinders cannot be used at end stroke.
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  • 200

    200

    THREADED CYLINDERS WITH SPRING RETURN AND HOLLOW PLUNGER
    The pistons of the cylinders in this series have a threaded through hole allowing the fitting of pins and tie-rods for push or pull applications. The body with threaded collar and the holes in the base allow easy mounting in any position. The piston is produced using case- hardened material, while the nitriding of the body reduces wear and increases protection against corrosion.Special versions can be produced on request.
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  • 200 DE

    200 DE

    DOUBLE-ACTING THREADED CYLINDERS WITH HOLLOW PLUNGER
    The pistons of the cylinders in this series have a threaded through hole allowing the fitting of pins and tie-rods for push or pull applications. The body with threaded collar and the holes in the base allow easy mounting in any position. The piston is produced using case- hardened material, while the nitriding of the body reduces wear and increases protection against corrosion.Special versions can be produced on request.
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  • 300

    300

    SINGLE AND DOUBLE-ACTING SWING CLAMP THREADED CYLINDER
    These swing clamps are particularly suitable in all cases where the insertion and removal of the piece during machining must be facilitated. The clamping cycle takes place in two phases: one of clockwise or anti-clockwise rotation with partial descent of the piston, and one of a vertical downward stroke for the clamping effect. In single-acting models when the pressure is released, the clamping arm automatically returns to its initial position by an internal spring. In double-acting models the return is ensured by a second hydraulic line. The clamping arm fixing block, the long internal piston guide in treated case-hardened steel, the nitrided steel body, all guarantee an unlimited number of cycles at the maximum pressure of 400 bar.Special versions can be produced on request.
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  • 300 F

    300 F

    SINGLE AND DOUBLE-ACTING SWING CLAMP CYLINDER WITH FLANGE
    These swing clamps are particularly suitable in all cases where the insertion and removal of the piece during machining must be facilitated. The clamping cycle takes place in two phases: one of clockwise or anti-clockwise rotation with partial descent of the piston, and one of a vertical downward stroke for the clamping effect. In single-acting models when the pressure is released, the clamping arm automatically returns to its initial position by an internal spring. In double-acting models the return is ensured by a second hydraulic line. The clamping arm fixing block, the long internal piston guide in treated case- hardened steel, the nitrided steel body, all guarantee an unlimited number of cycles at the maximum pressure of 400 bar. The cylinder can be supplied through unions or through passages in the fixing plate with sealing by means of O-rings.Special versions can be produced on request.
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  • 303

    303

    SINGLE AND DOUBLE-ACTING SWING CLAMP CYLINDER WITH FLANGE
    The cylinder is fitted with a mechanical overload safety device, to protect the swing mechanism if it encounters an obstacle. The clamping cycle takes place in two phases: one of clockwise or anti-clockwise rotation with partial descent of the piston, and one of a vertical downward stroke for the clamping effect. In single-acting models when releasing the pressure the arm automatically turns and returns to the initial position by the internal spring. In double-acting models the return is ensured by a second hydraulic line. The clamping arm fixing block, the long internal piston guide in treated case-hardened steel guarantee an unlimited number of cycles at the maximum pressure of 400 bar. The cylinder can be supplied through unions or through passages in the fixing plate with sealing by means of O-rings.Special versions can be produced on request.
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  • 350

    350

    SINGLE AND DOUBLE-ACTING SWING CLAMP THREADED CYLINDER
    These swing clamps are particularly suitable in all cases where the insertion and removal of the piece during machining must be facilitated. The clamping cycle takes place in two phases: one of clockwise or anti-clockwise rotation with partial descent of the piston, and one of a vertical downward stroke for the clamping effect. In single-acting models when releasing the pressure the arm automatically turns and returns to the initial position by the internal spring. In double-acting models the return is ensured by a second hydraulic line. The clamping arm fixing block, the long internal piston guide in treated case-hardened steel and the nitrided steel body are a guarantee of an unlimited number of cycles at the maximum pressure of 400 bar.Special versions can be produced on request.
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  • 400

    400

    POSITIVE CLAMPING CYLINDERS WITH HOLLOW PLUNGER
    The series 400 provides a clamping force without permanent connection to a hydraulic power source. The force is provided by built-in packs of Belleville washers, and the hydraulic connection is only required to compress the springs and return the piston. These cylinders are ideal for clamping guides, dies or pallets, and in all cases where permanent hydraulic connection would require complex circuits. A central threaded through hole allows use in push or pull mode.Special versions can be produced on request.
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  • 500

    500

    SWING CLAMP CYLINDERS WITH POSITIVE CLAMPING
    In these cylinders the force is provided by built-in packs of Belleville washers, making clamping independent of the hydraulic connection. Series 500 cylinders are ideal in all cases where a reliable, constant clamping force for a prolonged period of time is required, such as in multipallet processing systems or transfer machines. The clamping cycle takes place in two phases: one of clockwise or anti-clockwise rotation with partial descent of the piston, and one of a vertical downward stroke for the clamping effect. The threaded body allows easy installation on the equipment with the aid of flanges or ring-nuts.Special versions can be produced on request.
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  • 600

    600

    DAMPER CYLINDERS WITH BASE
    These damping cylinders are used as supporting components in all processes where the stresses applied to the piece by the tool are such as to cause deformations or vibrations. Thanks to its square base with rear inlet hole and O-ring seal; in this model the oil enters through hole inside the equipment. The rod with internal threading allows the elements of different lengths and shapes to be mounted to fit the piece. The damper cylinder (version A) is supplied by a single hydraulic line with controlled flow-rate. On this cylinder, the clamping sequence is as follows: The rod approaches the piece with minimum force (10-20 N), the pressure rises and is then clamped in position.When the pressure is released the rod returns to the initial starting position. In the damper cylinder (version B) with spring approaching, the rod is fully extended in the basic position so that positioning can take place before clamping by means of contact with the weight of the piece for machining.Special versions can be produced on request.
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  • 616

    616

    DAMPER CYLINDERS WITH THREADED BODY
    These damping cylinders are used for machining large or small pieces when the stresses applied to the piece by the tool are such as to cause deformations or vibrations.616_verThe damper cylinder (version A) is supplied by a single hydraulic line with controlled flow-rate. On this cylinder, the clamping sequence is as follows: – The rod approaches the piece with minimum force (10-20 N), the pressure rises and is then clamped in position. When the pressure is released the rod returns to the initial starting position.In the damper cylinder (version B) with spring approaching, the rod is fully extended in the basic position so that positioning can take place before clamping by means of contact with the weight of the piece for machining. Special versions can be produced on request.
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  • 700

    700

    DOUBLE-ACTING THREADED CYLINDER
    High performance double-acting cylinders for push – pull applications. Its compact size and inlet holes in the rear seat of the cylinder mean that it can be used on all kinds of equipment, even where space is most limited. The piston with threaded hole allows suitably shaped tips to be mounted, while the internal brass coating ensures excellent, lasting resistance in automated processes for clamping on production equipment, and in cutting, bending and punching plants.Special versions can be produced on request.
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  • 705

    705

    DOUBLE-ACTING BLOCK CYLINDERS
    These compact double-acting cylinders available with a wide range of forces and strokes are particularly suitable in applications requiring repeated high-speed cycles. In all 10 models available the piston is in hardened steel, while the nitrited body guarantees good protection against corrosion, thus minimizing wear.WARNING For pressures over 150 bar the cylinder must be equipped with back rest.
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  • 705-O

    705-O

    DOUBLE-ACTING BLOCK CYLINDERS WITH O-RING SEALS
    These compact double-acting cylinders are able to perform a wide variety of functions with high production cycles for clamping, pressing, lifting, bending and punching. The fluid is supplied to the cylinder through passages in the fixing plate, the piston is in hardened steel and the nitrited body guarantees good protection against corrosion, thus minimizing wear.WARNING: For pressures over 150 bar the cylinder must be equipped with back rest.
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  • 750

    750

    DOUBLE-ACTING BLOCK CYLINDERS
    These compact double-acting cylinders available with a wide range of forces and strokes are particularly suitable in applications requiring repeated high-speed cycles. In all 10 models available the piston is in hardened steel, while the nitrited body guarantees good protection against corrosion, thus minimizing wear.Special versions can be produced on request.
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  • 750-O

    750-O

    DOUBLE-ACTING BLOCK CYLINDERS WITH O-RING SEALS
    These compact double-acting cylinders are able to perform a wide variety of functions with high production cycles for clamping, pressing, lifting, bending and punching. In all sizes, the fluid is supplied to the cylinder through passages in the fixing plate, with inlet ports at the sides (version L) or at the rear (version P). In all models available the piston is in hardened steel, while the nitrited body guarantees good protection against corrosion, thus minimizing wear.Special versions can be produced on request.WARNING: For pressures over 150 bar the cylinder must be equipped with back rest.
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  • Cylinders series 800

    800

    SINGLE-ACTING TILTING CLAMP CYLINDER
    The series 800 tilting clamp cylinders are used in clamping applications which require compact sizes, because there is no swing phase. The threaded body make for easy adjustement in production equipment or fixed with appropriate supports. Pressurizing the cylinder causes the arm to move down and lock into the horizontal position. The cylinder can be supplied through union or through passages in the fixing plate with sealing by means of O-ring.Special versions can be produced on request.
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  • CM122

    CM122

    CYLINDER WITH SPRING RETURN MANIFOLD THREADED
    These compact single-acting cylinders with built-in spring are ideal for clamping pieces on multiple fixtures of machine tools. The fluid is supplied through passages inside the machine tool assembly, thus eliminating pipelines and unions; sealing is ensured by copper washers for the version with threaded body and by O-rings for the version with base. The body is constructed in heat-treated steel for automatic machines and the piston in case hardened steel ensures long cylinder lifetime. Available in two versions: with crowned (version A) or threaded piston end (version B).Special versions can be produced on request.
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  • I122

    I122

    MANIFOLD THREADED CYLINDERS WITH SPRING RETURN
    These models of single-acting cylinders with spring return may be screwed straight into the equipment. The oil enters through ducts machined inside the unit and sealing is assured by means of seals on the bottom of the threaded hole. Available in two versions: with crowned (version A) or threaded piston end (version B). A long piston guide in hardened steel combined with sealing by means of O-ring and backing ring ensures long cylinder lifetime. The body is also constructed in heat- treated steel for automatic machines.Special versions can be produced on request.
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  • S126

    S126

    THREADED CYLINDERS WITH SPRING RETURN
    The special construction concept allows this series of cylinders to work at the limit stop position with frequent operation at the maximum pressure. The threaded piston in treated case-hardened steel allows the fixing of any contact pins required and the nitrided steel body ensure minimum wear and excellent protection against corrosion.Special versions can be produced on request.
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  • S226

    S226

    BLOCK CYLINDERS WITH SPRING RETURN
    The special construction concept allows this series of cylinders to work at the limit stop position with frequent operation at the maximum pressure. In all sizes, the fluid can be supplied through threaded unions or through passages in the fixing plate. The threaded piston in treated case-hardened steel allows the fixing of any contact pins required; and the nitrided steel body ensure minimum wear and excellent protection against corrosion.Special versions can be produced on request.
    WARNING: For pressures over 150 bar the cylinder must be equipped with back rest.
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  • T126

    T126

    TRACTION THREADED CYLINDERS WITH SPRING RETURN
    The special construction concept allows this series of cylinders to work at the limit stop position with frequent operation at the maximum pressure. The piston moves downwards and exercises a traction force. The piston in treated case-hardened steel allows the fixing of any contact pins required; the nitrided steel body ensure minimum wear and excellent protection against corrosion. Mounting in any position using the threaded body or the No.4 threaded holes for flange attachment.Special versions can be produced on request.
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