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・Before installing, operating or maintaining this equipment, carefully read this manual and the safety labels attached to the equipment. Failure to follow these instructions and safety precautions could result in serious injury, death, or property damage. ・Store this manual near equipment for future reference. ・If any questions related to safety arise about this manual, please confirm them with the distributor or our company. Kitagawa Corporation 77-1,Motomachi,Fuchu-shi,Hiroshima,726-8610,Japan Te l . +81-847-40-0561 Fax. +81-847-45-8911...
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The chuck and cylinder from Kitagawa Iron Works should be used together. If you must use a part not made by Kitagawa, check with us or our distributor to be sure it is safe to do so. We will not be responsible for injury, death, ...
………………………………………………………………………………… 13 3-1. Specification table 4.Hydraulic Oil …………………………………………………………………………………… 14 5.Trial Operation ……………………………………………………………………………… 15 6.Maintenance and Inspection ……………………………………………………………… 16 6-1. Maintenance and inspection of cylinder 6-2. Maintenance and inspection of hydraulic unit 6-3. List of seals to use 7.Malfunction and Countermeasures ………………………………………………………… 17 7-1. In the case of malfunction 7-2. Where to contact in the case of malfunction 8.Coolant Collector …………………………………………………………………………… 18 8-1. Outline 8-2. Type and applicable cylinder 8-3. Specifications 8-4. Attachment 8-5. Positional adjustment of proximity switch 8-6. Precautions 8-7. Parts list For Machine Tool Manufacturers (Chapter 9) 9.Attachment …………………………………………………………………………………… 21 9-1. Outline drawing of attachment 9-2. Production and attachment of cylinder adapter 9-3. Production and attachment of draw pipe 9-4. Attachment of cylinder 9-5. Tightening torque of cylinder attaching bolt 9-6. Attachment of parts other than parts manufactured by Kitagawa Iron Works 10.About Hydraulic Circuit Design …………………………………………………………… 28 11.Other Information …………………………………………………………………………… 29 11-1. About standards and orders 11-2. Information about markings of product 11-3. About disposal...
1 . Structural Drawing and Parts List 1−1 Type display Type display as shown below. Example 5th digit and after that are not displayed for the standard cylinders. 1. S Abbreviated name of S cylinders 2. 12 Nominal inside diameter of the cylinder 3. 46 Nominal thru-hole diameter 4. − Cylinder with lock valve, relief valve and fan (Standard specification) L Long stroke type cylinder with lock valve, relief valve and fan 5〜7 Columns for special specification for each destination of delivery Remarks 1) What is a lock valve ? This is a valve which has a function to retain the hydraulic pressure inside a cylinder temporarily when the pump pressure suddenly lowers as a result of blackout, malfunction of the hydraulic pump, etc. Remarks 2) What is a relief valve ? This is a valve which has a function to stop damage when the hydraulic oil filled inside the cylinder has increased its pressure due to the volume change. 1−2 Structural drawing Cylinder Cylinder adapter Sleeve Body Lathe Support Fig. 1...
1−3 Scope of product This instruction manual is for the cylinder part. Cylinder Chuck Flexible hose Drain hose Pressure adjusting Hydraulic Manual Pressure screw pump switching valve gauge Line Filter SOL. Solenoid valve Tank Fig. 2 WARNING ・To prevent the work from flying, safe design, maintenance and erroneous action prevention of the hydraulic system to maintain the gripping force of the chuck is extremely important. Thoroughly read the Important ...
1−4 Parts list 12 28 13 30 26 S1036 Detail of Lock Valve 17 27 Fig. 3 Table 1 Part name Quantity Part name Quantity Lock valve 2 or 4 Socket head cap screw 6 or 12 Relief valve Socket head cap screw 8 or 12 or 16 Cylinder Cross-Recessed head Machine screw 7or 8or 12 Rotary valve O-ring 0 or 1or 4 Sleeve body O-ring 1 or 2 Sleeve O-ring 0 or 2 Piston O-ring O-ring Guide pin 0 or 2 O-ring Fan cover...
2 . Important Safety Precautions Important safety precautions are summarized below. Please read this section before first starting to use this product. DANGER Failure to follow the safety precautions below will result in serious injury or death. Turn off main power supply before attaching, inspecting or replacing cylinder, and before adding oil. For All Users ・The cylinder may start rotation suddenly, and a part of the body or clothing may be Main power supply caught. Lathe Close door before rotating spindle. For All Users ・If the door is not closed, you may touch the rotating chuck or the work may fly out, ...
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DANGER Failure to follow the safety precautions below will result in serious injury or death. Do not allow the rotation speed of the chuck to exceed the maximum allowable speed limit. For All Users ・If the rotation speed of the chuck exceeds the rotation speed limit, this is very FLY OUT dangerous as the chuck and work will fly out. WORK The input force of the chuck (piston thrust, pulling force of the draw pipe) must not exceed the allowable maximum input force. For All Users ・Input must match the specification of Cylinder the chuck. ・Adjust the hydraulic pressure to the Draw pipe cylinder so that the input force, which ...
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Important Safety Precautions DANGER Failure to follow the safety precautions below will result in serious injury or death. Be sure cover is attached to periphery of cylinder before operating machine. (Refer to pages 21-22) For All Users ・This will prevent the body or clothing from being caught in the machine. Lathe Prepare the covers that conform to the following standards. ・ EN953 ・ EN ISO13857 ・ EN1088 Always tighten the bolts at the specified torque. (Refer to page 26) For All Users ・If the torque is insufficient or excessive, the Attaching plate bolt will break, which is dangerous as the cylinder or work will fly out. (B) ・Fix the lathe spindle or the cylinder when you tighten bolts. Your hand could slip and get injury ...
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DANGER Failure to follow the safety precautions below will result in serious injury or death. Use of a chuck and cylinder that cannot be used together safely may cause the cylinder to break at high pressure resulting in the chuck For All Users and work flying out. ・Check that the chuck and the cylinder are in the safe combination when using at high pressure with our company or the distributor. Especially when the cylinder of our company and a high pressure chuck of other company are combined, confirmation is necessary. ・If one of the abnormal events shown below occurs during operation, immediately stop the machine and consult with our company or the distributor. ・The work slips. ・Loss of accuracy. Cylinder Chuck ・The work begins to chatter. FLY OUT ・The machine's vibration significantly increases. ・The gripping force does not rise even if hydraulic pressure is raised. WORK Use a cylinder with a lock valve (safety valve, check valve) incorporated in case of sudden ...
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Piston and resulting in the gripping force being lost and the work flying out. Type Tightening torque Type Tightening torque ・When screwing the draw pipe, piston to S1036 100 N ・ m S1875・S1875L 340 N ・ m the end of the pressing side stroke. S1246 ・ S1246L 150 N ・ m S2091・S2091L 380 N ・ m S1552 ・...
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WARNING Failure to follow the safety precautions below could result in serious injury or death. Periodically add hydraulic oil. Turn off power and use designated hydraulic oil. For All Users (Refer to page 14) ・If supplying of the hydraulic oil is insufficient, the operation speed may lower and the thrust force will become insufficient resulting in a drop in the gripping force of the chuck, which is dangerous as the work may fly out. ・Use abrasion resistant and deforming hydraulic oil. Assemble piping after completely removing the dust inside the pipe. Add a filter into the pressure supplying line(P). For All Users ・Failure to do so could cause oil leakage and may result in a fire.
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Important Safety Precautions WARNING Failure to follow the safety precautions below could result in serious injury or death. Refer to page 27 in this manual when you attach the other than parts manufactured by Kitagawa Iron Works (a stopper to shorten stroke or spindle work stop, etc.) to the cylinder. However, the personnel who designed those parts For Machine Tool Manufactures must judge whether they are safe for the usage conditions. ・Doing so may damage the cylinder and cause oil leakage which could result in a fire. And if the hydraulic oil leaks, the gripping force of the chuck will lower and the work may fly out, which is dangerous. W o r k Work positioning Piston screw Stopper apparatus Part for stroke...
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3 . Specifications 3−1 Specifications table Table 2 Type S1036 S1246 S1552 S1875 S2091 S2816 S1246L S1552L S1875L S2091L Thru-hole diameter Piston stroke Piston surface area (pulling side) Piston maximum thrust force Maximum operating hydraulic pressure Maximum 8000 7000 6200 4700 3800 1700 7000 6200 4700 3800 rotation speed Mass 12.0 16.8 26.0 33.0 84.0 12.8...
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4 . Hydraulic Oil ○To keep good operation of the cylinder, it is recommended to use hydraulic oil with a viscosity of 32cSt at 40℃. (ISO VG32 equivalent product) ○Replace the hydraulic oil about once every six months. ○The characteristics of hydraulic oil influences the heating, drain amount and acting speed of the cylinder, therefore, control it according to the instruction manual for the hydraulic unit. WARNING ・Turn off the power source and supply designated hydraulic oil. Insufficient oil supply decreases the acting speed, causes thrust force insufficiency resulting in a drop in the chuck gripping force, which could allow the work to fly out. Use abrasion resistant and deforming hydraulic oil. Add a filter of 20?m or less in the pressure supplying line(P) to maintain the function of the cylinder and to prevent seizing caused by foreign matter. 留 意 NOTICE ・If high speed rotation is continued, the oil temperature will rise, which could rapidly a high temperature, it will rapidly aggravate deterioration of the sealing materials and deterioration of the hydraulic oil. Use a cooler to keep the oil temperature at 60℃ or lower. To cylinder A. B. port <Example> Inside and outside diameter gripping switching Chuck open and close Cooler Fig. 4 ※ Keep the back pressure extremely low in this case as well.
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5 . Trial Operation Read safety precautions starting on page 6 before performing trial operation. (1) Check that the power voltage is at the specified voltage. (2) Set the pressure adjusting handle to the lowest state during trial operation, and check the turning direction of the pump in inching (shortly turn on and off the switch). When it is rotating in the reversed direction, change the connection of 2 cables out of the 3 cables. (3) As for the operating pressure for chucking, first lower to the lowest pressure, and then set to low pressure at which the chucking action is possible (0.35-0.5MPa) to check the following. ○Is it operating smoothly? ○Is the operating direction correct? (Opening and closing direction of the chuck) ○Is the operating stroke appropriate? (Jaw stroke of the chuck) ○Is there any oil leakage with each piping? If they are normal, gradually raise the operating pressure up to the rated pressure while checking the items specified above.
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If any malfunction occurs, return cylinder to our company for repair. If it is disassembled and reassembled at a place other than our company, it may not function correctly as well as cause precision failure. 6−2 Maintenance and inspection of hydraulic unit ○ Clean the suction strainer every 2 to 3 months. ○ Replace the hydraulic oil about once every six months. 6−3 List of seals to use (Refer to Fig.3) Table 3 S1552 ・ S1552L S1875 ・ S1875L S2091 ・ S2091L S2816 Quantity No. Part name S1036 S1246 ・ S1246L JIS B2401 JIS B2401 JIS B2401 JIS B2401 JIS B2401 1 or 4 O-ring ー JIS B2401 JIS B2401 JIS B2401 JIS B2401...
7 . Malfunction and Countermeasures 7−1 In the case of malfunction Check the points specified below again and take measures. Table 4 Defective Measures Check that the hydraulic pressure is operating by the motion of the flexible hose, etc. Piston Operation Check that there are no mistakes in piping. Inability Try operations when operation inability specified in the items of the trial operation. Check that the pressure is as specified at the cylinder pipe inlet by attaching a pressure Cylinder gauge near the inlet of the cylinder. Thrust Force Wearing of the O-ring inside is possible when the flow rate of the returning side pipe or Insufficiency the drain is more than usual. Check that the viscosity of the hydraulic oil is as designated. Temperature Replenish the hydraulic oil inside the tank if it is low. Rise When the room temperature is high and the radiation effect of the tank is bad, control the oil temperature using a cooler or a fan, etc. Do not suck air. Replenish the hydraulic oil inside the tank if it is low. Pump noise If a large amount of dirt is deposited inside the tank, or when the hydraulic oil is deteriorated, the pump may be worn out abnormally, and it will be necessary to repair the pump. Provide a stream slope, without air pockets, and no back pressure must be applied. Oil leakage Return the drainage onto the surface of the oil of the hydraulic unit . from labyrinth Check that the air breather of the hydraulic unit is not clogged. WARNING ・If the chuck failed due to a seizure or breakage, remove the chuck from the machine, following the disassembly steps in the chuck instruction manual, and then remove the cylinder by the reverse steps of "9. Attachment" after page 21. When the jaws and covers cannot be removed due to a blockage of workpiece, do not disassemble forcibly but please contact us or our agent.
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8 . Coolant Collector 8−1 Outline ○The coolant collector is attached to the Kitagawa S type rotation hydraulic cylinder, and easily collects the coolant flowing inside the draw pipe. ○To electrically check piston operation and for clamping/unclamping detection of a work, There are 2 proximity switches attached to the coolant collector. 8−2 Type and applicable cylinder ○The coolant collector is to be arranged separately from the cylinder, so designate the type specified below when ...
8−5 Positional adjustment of proximity switch Read following instruction when you adjust the proximity switch. (Fig.6) ① Loosen the socket head cap screw [15] on the coolant collector, then remove the cover [3] and the seat packing [8]. ② Loosen the socket head cap screw [15] that fix the adjusting plate [4]. ③ Unclamp the chuck. ④ Install one proximity switch [22] on the outer surface of the body [1], passing through the adjusting plate [4], and make it approach to the detectable plate [11] until the LED of proximity switch lights up. At this time, adjust the screw of proximity switch [22] so that the distance between proximity switch [22] and outside diameter end of detectable plate [11] is about 1 mm, and slide to adjust the adjusting plate [4] in the axial direction.
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8−7 Parts list 18 16 Fig. 7 Table 8 Part name Quantity Part name Quantity Body Cover Plate Socket head cap screw Cover Socket head cap screw Adjusting plate Socket head cap screw Hose nipple Socket head cap screw Metal screen Plain washer Sheet packing (1) O-ring Sheet packing (2) Cross recessed head tapping cap screw Sheet packing (3) Sheet packing Sheet packing (4) Proximity switch Detectable plate BES M12MI-NSC20B-BV02 Terminal block assembling Direct current 3 wire system a contact...
For Machine Tool Manufacturers Following pages are described for machine tool manufacturers (personnel who attach a cylinder to a machine). Please read following instruction carefully when you attach or detach a cylinder to machine, and please sufficiently understand and follow the instructions for safe operation. 9 . Attachment 9−1 Outline drawing of attachment Cylinder Cylinder adapter Lathe rear cover Draw pipe Top jaw Sleeve body Chuck NC lathe Back plate Support Flexible hose Drain hose Use one with large inside diameter as possible Hydraulic pump Pressure Manual Pressure gauge switching valve adjusting screw Line filter SOL. Solenoid valve Tank Return onto the oil surface Fig. 8 ・Attach the manual switching valve at a position where it is easy to operate for the attaching equipment. ・Install the hydraulic unit at a position where the drain hose is not kinked and the needle of the pressure gauge is easily read.
DANGER ・When other actuators are operated by the same hydraulic pressure source as the cylinder for chuck, be sure that a pressure drop of the cylinder does not occur during use. A hydraulic pressure drop leads to a drop in the gripping force which could allow the work to fly out. ・As to the drain hose ・Use one with inside diameter φ32. ・Use a transparent vinyl hose for visualization. ・Provide a stream slope, without air pocket. This will ensure no back pressure. ・The end of the hose is physically above the oil level. (Refer to Fig.8) ・ If the hydraulic oil stagnates inside the cylinder, oil leakage occurs, which may cause a fire. WARNING ・Install after removing the dust inside the pipe completely. ・Add a filter to the pressure supplying line(P). If foreign matters gets inside the cylinder, this is dangerous since the rotation valve of the cylinder will seize, the hose will tear off, and the cylinder will rotate. This is also dangerous as the work will fly out.
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Table 9 (Unit: mm) Type φ A (F7) φ B φ C D (MAX) Socket head cap screw S1036 6-M10 S1246 12-M10 S1552 12-M10 S1875 12-M10 S2091 12-M12 S2816 12-M16 S1246L 12-M10 S1552L 12-M10 S1875L 12-M10 S2091L 12-M12 9−3 Production and attachment of draw pipe ○Determine the length of the draw pipe as shown below. ○When screwing the draw pipe into the piston, screw in a state that the piston fully comes outside. DANGER ・Sufficiently degrease and apply adhesive on the thread part of the piston and the thread part of the draw pipe, and then screw in and tighten. ・If the screw is loose, the jaw stroke of chuck will shorten, which could allow the work to fly out. Cylinder adapter Draw pipe...
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DANGER ・Provide sufficient strength for the draw pipe. If the draw pipe is broken due to insufficiency of the strength, the gripping force will be lost instantly, which is dangerous as the work will fly out. ・Keep the dimension e and the dimension f in Fig. 11 for the draw pipe and a material with the tensile strength 380MPa (38kgf/mm ) or more must be used. ・The personnel who designed draw pipe must judge whether the strength of the draw pipe is sufficient for the usage conditions. ・The dimensions and materials specified in this manual do not guarantee that the draw pipe will not break under every usage condition. ・If the screw-in depth of the draw pipe to the draw nut is insufficient, the screw will break and the gripping force will be lost instantly, which is dangerous as the work will fly out. ・If the draw pipe is unbalanced, vibration occurs, the screw is broken and the gripping force will be lost instantly, which is dangerous as the work will fly out. ・If the engagement of the screw of the draw pipe is loose, vibration may occur resulting in breakage of the screw. If the screw breaks, the gripping force will be lost instantly, which is dangerous as the work will fly out. 9−4 Attachment of cylinder ・When removing/installing the cylinder, use a lifting belt and perform as follows. (Fig.13) 1. To lift up the cylinder, engage a lifting belt with the draw-pipe and lift up the cylinder while supporting it. 2. Insert the draw-pipe into the spindle. 3. When a lifting belt comes close to the spindle, shift the lifting belt toward the cylinder. 4. When the draw-pipe has entered the spindle sufficiently, re-engage a lifting belt with the cylinder body and fit the cylinder closely to the spindle and then install the cylinder with the cylinder mounting bolts. Spindle Lifting belt Detach in the reverse procedures of attachment. Lathe Draw pipe Cylinder adapter Cylinder Fig.13 CAUTION ・Use a lifting belt when attaching and detaching the cylinder to and from the machine, as there is a danger of injury or damage if the cylinder drops.
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・After attaching the support to the lathe, provide clearance between the protrusion of the sleeve body and the support so that force is not applied to the sleeve body. ○As for the run-out when attaching the cylinder, attach the cylinder while keeping the vertical run-out of the sleeve body rear end and the cylinder periphery at the standard value specified in the table 12 or lower when rotation stop of the sleeve body is applied and the spindle is rotated. Sleeve body Cylinder Cylinder adapter Fig. 14 Lathe Support Table 11 (Unit: mm) Type S1036 φ47 S1246, S1246L φ47 Determined S1552, S1552L φ47 by the lathe S1875, S1875L φ47 S2091, S2091L φ47 S2816 φ47 C・TIR...
Table 12 (Unit: mm) Type Type S1036 or equivalent 0.015 0.010 S1875 or equivalent 0.020 0.010 S1246 or equivalent 0.015 0.010 S2091 or equivalent 0.025 0.010 S1552 or equivalent 0.015 0.010 S2816 or equivalent 0.030 0.010 To obtain the above specified value of run-out, make the surface run-out of the cylinder adapter as small as possible. (0.005 mm TIR or less) <Attachment of cylinder adapter> ○In the case of attaching the cylinder first to the cylinder adapter and then to the lathe, place it vertically as shown in the figure below, and attach the tester to the V block made of Duracon and center the cylinder adapter for the ...
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58 N ・ m ※Since the material of the cylinder is aluminum, it is 80% of the tightening 85 N ・ m torque to the bolt size specified for the hydraulic chuck of our company. 200 N ・ m 9−6 Attachment of parts other than parts manufactured by Kitagawa Iron Works Refer to following pages when you attach the other than parts manufactured by Kitagawa Iron Works (a stopper to shorten stroke or spindle work stop, etc.) to the cylinder. (Refer to Fig.18 and Table 15) Mass of the other parts W Fig. 18 o External force r...
? diameter gripping Valve equipped with a function to prevent breakage when the hydraulic oil filled inside the cylinder caused a pressure increase due 4 port 2 position switching valve Fig. 19 to the volume change. WARNING ・To avoid serious injury from flying work, use the throttle valve to keep the surge pressure low. Operation failure and cylinder breakage may occur if a reducing valve used for the hydraulic pressure setting fails to respond to pressure adjustment and results in excessive surge pressure. Remark ) What is a surge pressure ? Pressure produced by a change in velocity of the moving stream that result from activating a hydraulic pump, operation of a solenoid valve. NOTICE ・Select the operation equipment that matches the pipe diameter of the cylinder. The smaller the diameter is, the larger the pipe resistance becomes and the lower the acting speed is. <Installation> The hydraulic pressure supply ports are port A (cylinder pushing side) and port B (cylinder pulling side) in Fig.20. Though both ports A and B have two ports each, connect the pipes to one port respectively and plug the reminders. For the size of each port, see Table 16. Table 16 Type S1036 S1246(L) S1552(L) S1875(L) S2091(L) S2816 Rc3/8 Rc1/2 A port Rc3/8 Rc1/2 B port...
11 . Other information 11−1 About standards and orders This product is based on the following standards or orders. ・Machinery directive : 2006/42/EC Annex I ・EN ISO 12100 : 2010 ・EN1550 : 1997+A1 : 2008 11−2 Information about markings of product A PORT B PORT DRAIN PORT SPECIFICATIONS TYPE:TYPE ● MFG.No.:SERIAL No. ● MAX.SPEED:MAX PERMISSIBLE SPEED ● MAX.PULL/PUSH ● MAX THRUST FORCE PULL/PUSH MAX.PRESS ● MAX PERMISSIBLE OIL PRESS MASS:MASS ● COUNTRY OF ORIGIN ● Fig. 20 11−3 About disposal Ultimate disposal of this product should be handled according to all national laws and regulations.
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Kitagawa Corporation Kitagawa Global hand Company 77-1,Motomachi,Fuchu-shi,Hiroshima,726-8610,Japan Tel.+81-847-40-0561 Fax.+81-847-45-8911 ■ JAPAN DOMESTIC 1-405-1,Kita-ku,Yosino-cho,Saitama-shi,Saitama,331-9634,Japan Tokyo office Tel.+81-48-667-3469 Fax.+81-48-663-4678 4-15-13,Yamatomachi,Wakabayashi-ku,Sendai-shi,Miyagi,984-0042,Japan Sendai office Tel.+81-22-232-6732 Fax.+81-22-232-6739 2-62,Kamitakabata,Nakagawa-ku,Nagoya-shi,Aichi,454-0873,Japan Nagoya office Tel.+81-52-363-0371 Fax.+81-52-362-0690 3-2-9,Kitakagaya,Suminoe-ku,Osaka-shi,Osaka,559-0011,Japan Osaka office Tel.+81-6-6685-9065 Fax.+81-6-6684-2025 77-1,Motomachi,Fuchu-shi,Hiroshima,726-8610,Japan Hiroshima office Tel.+81-847-40-0541 Fax.+81-847-46-1721 7-6-39,Itazuke,Hakata-ku,Fukuoka-shi,Fukuoka,812-0888,Japan Kyushu office Tel.+81-92-501-2102 Fax.+81-92-501-2103 77-1,Motomachi,Fuchu-shi,Hiroshima,726-8610,Japan Overseas office Tel.+81-847-40-0526 Fax.+81-847-45-8911 ■ OVERSEAS KITAGAWA-NORTHTECH INC.
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