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Assembly and Operating Manual SRU-plus 20 - 60 Pneumatic swivel unit Translation of Original Operating Manual...
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Imprint Imprint Copyright: This manual is protected by copyright. The author is SCHUNK SE & Co. KG. All rights reserved. Technical changes: We reserve the right to make alterations for the purpose of technical improvement. Document number: 389443 Version: 14.00 | 21/09/2023 | en...
General terms of business * Catalog data sheet of the purchased product * The documents labeled with an asterisk (*) can be downloaded from schunk.com. 14.00 | SRU-plus 20 - 60 | Assembly and Operating Manual | en | 389443...
General 1.1.3 Sizes This operating manual applies to the following sizes: SRU-plus 20 SRU-plus 25 SRU-plus 30 SRU-plus 35 SRU-plus 40 SRU-plus 50 SRU-plus 60 1.1.4 Variants This operating manual applies to the following variations: SRU-plus SRU-plus rotating angle 90° SRU-plus rotating angle 180°...
General 1.3.1 Accessories pack SRU-plus ID number without fluid feed-through 5514981 5514981 5518653 5514989 5514993 5514997 5515001 with fluid feed-through 5514982 5514982 5518654 5514990 5514994 5514998 5515002 with center position 5516590 5516590 5518657 5516594 5516596 5516598 5516600 with locked center position 5514983 5514983 5518655...
General SRU-plus ID number 5518658 5516595 5516597 5516599 5516601 with fluid feed-through and locked center position 5514984 5514984 5518656 5514992 5514996 5515000 5515004 1.4 Accessories A wide range of accessories are available for this product For information regarding which accessory articles can be used with the corresponding product variants, see catalog data sheet.
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General SRU-plus ID number with locked center position 5519789 5519793 5519799 5519801 5519805 5519809 5519813 with fluid feed-through 0371003 0371007 5518599 0371011 0371015 0371019 0371023 with fluid feed-through and center position 5519790 5519794 5519796 5519802 5519806 5519810 5519814 with fluid feed-through and locked center position 5519791 5519795 5519797...
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General SRU-plus ID number 5521585 5521587 5521589 5521591 5521591 Basic sealing kit + monitoring set 5521584 5521584 5521586 5521588 5521590 5521592 5521592 14.00 | SRU-plus 20 - 60 | Assembly and Operating Manual | en | 389443...
Using unauthorized spare parts can endanger personnel and damage the product or cause it to malfunction. Use only original spare parts or spares authorized by SCHUNK. 14.00 | SRU-plus 20 - 60 | Assembly and Operating Manual | en | 389443...
Basic safety notes 2.5 Ambient conditions and operating conditions Required ambient conditions and operating conditions Incorrect ambient and operating conditions can make the product unsafe, leading to the risk of serious injuries, considerable material damage and/or a significant reduction to the product's life span.
Basic safety notes 2.7 Personal protective equipment Use of personal protective equipment Personal protective equipment serves to protect staff against danger which may interfere with their health or safety at work. When working on and with the product, observe the occupational health and safety regulations and wear the required personal protective equipment.
Basic safety notes 2.10 Malfunctions Behavior in case of malfunctions Immediately remove the product from operation and report the malfunction to the responsible departments/persons. Order appropriately trained personnel to rectify the malfunction. Do not recommission the product until the malfunction has been rectified.
Basic safety notes Incorrect lifting of loads Falling loads may cause serious injuries and even death. Stand clear of suspended loads and do not step into their swiveling range. Never move loads without supervision. Do not leave suspended loads unattended. 2.12.2 Protection during commissioning and operation Falling or violently ejected components Falling and violently ejected components can cause serious...
Basic safety notes 2.12.4 Protection against electric shock Possible electrostatic energy Components or assembly groups may become electrostatically charged. When the electrostatic charge is touched, the discharge may trigger a shock reaction leading to injuries. The operator must ensure that all components and assembly groups are included in the local potential equalisation in accordance with the applicable regulations.
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Basic safety notes WARNING Risk of injury from sharp edges and corners! Sharp edges and corners can cause cuts. Use suitable protective equipment. WARNING Risk of burns through contact with hot surfaces! Surfaces of components can heat up severely during operation. Skin contact with hot surfaces causes severe burns to the skin.
Technical data 3 Technical data 3.1 Type key SRU-plus 20 -W-180 -3 -M - 4 -EX-M8 - AS Size Damping type S = speed W = soft H = hard Swivel angle 90° 180° End position adjustability 3° 90° Center position –...
Tab.: Basic data EDF The catalog data sheet contains diagrams for designing the maximum permissible mass moment of inertia. The SCHUNK contact person provides support for designing further applications. More technical data is included in the catalog data sheet. Whichever is the latest version.
Design and description 4 Design and description 4.1 Design Design Housing Back stops (0° - 180°) Back stops (0° - 90°) Pinion Piston with shock absorbers Cover Cover Clamp shell Clamp shell * * The variant "explosion-protected version" does not contain a clamp shell. It is clamped by an eccentric.
Design and description 4.1.1 Variant with electrical feed-through (EDF) Assembly with EDF Base unit with fluid feed-through EDF flange Sensor holder with sensor Monitoring with fixed cam Distributor plate 4.2 Description The product is a pneumatic rotary actuator for rotating and swiveling movements.
Assembly 5 Assembly 5.1 Assembling and connecting WARNING Risk of injury due to unexpected movement of the machine/system! With a horizontal swiveling axis, secure locking is not guaranteed during the ventilation stage when a swivelling movement is being performed from 3 o'clock (180°) to 6 o'clock (90°) or from 9 o'clock (0°) to 6 o'clock (90°).
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Assembly Screw in locking screws in open and not required air connections where appropriate. With the variant with electrical feed-through (EDF), connect connection cable, [/ 31]. } 5.2.3 For application cases with horizontal swivel axes, mount separating sleeves, [/ 33]. } 5.3 Adjust angle of rotation, [/ 36].
Assembly 5.2 Connections 5.2.1 Mechanical connection DANGER Danger of explosion in potentially explosive areas! Observe supplementary sheet for products with explosion- resistant versions "SRU-plus -...-EX". NOTE Adapter plates between the product and the machine/system as well as the product and the attachment part must be made of high-strength aluminum or steel.
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Assembly Attachment connections without fluid feed-through Attachment connection without fluid feed-through Screw connection diagram SRU-plus Screw connection diagram SRU-plus compatible with OSE SRU-plus ① Screws * ② Centering sleeve M5 / 9 Ø6 M6 / 10 Ø6 M5 / 9 Ø6 M6 / 10 Ø6...
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Assembly Attachment connections with fluid feed-through Attachment connection with fluid feed-through up to size 30, example size 25 factory installation position of the pinion: Numbers "1" on the pinion and housing are aligned with each other. ① Screws * ② Screws * ③...
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Assembly 5.2.1.1 Variant with electrical feed-through (EDF) For the variant with electrical feed-through (EDF), it can only be assembled on the system side via the threaded hole. Assembly options Threaded holes assembly on the system side Customer's adapter plate Attachment connection If the hose-free direct connection is used, the set-screws must be removed.
Assembly 5.2.2 Pneumatic connection DANGER Danger of explosion in potentially explosive areas! Observe supplementary sheet for products with explosion- resistant versions "SRU-plus -...-EX". NOTE Observe the requirements for the compressed air supply, } 3 [/ 19]. In case of compressed air loss (cutting off the energy line), the product loses its dynamic effects and does not remain in a secure position.
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Assembly Only open the air connections required. Seal those main air connections that are not needed using the locking screws from the accessory pack. For hose-free direct connections, use the O-rings from the accessory pack. Use throttle valve from the accessory pack for the main air connections.
Assembly 5.2.3 Electrical connection SRU-plus 20-35 with EDF, for example SRU-plus 30 with M8 socket SRU-plus 40-60 with EDF, for example SRU-plus 40 with M8 socket and M12 socket Bending radius Minimum bending radius for constant movement: 10 x cable diameter 14.00 | SRU-plus 20 - 60 | Assembly and Operating Manual | en | 389443...
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Assembly Pin allocation, connection plug M16 SRU-plus 20-35 EDF Pin allocation Switching signal, sensor 3 GND (common) Switching signal, sensor 2 Switching signal, sensor 4 Switching signal, sensor 1 Switching signal 1, sensor 5 Switching signal 2, sensor 5 +24 V (common) Switching signal 1, sensor 6 Switching signal 2, sensor 6 - not connected -...
Assembly 5.3 Mounting separating sleeve CAUTION The O-ring could be damaged! If the set-screw is turned too far into the air connection, the O- ring may be damaged when screwing in the separating sleeve and the air connection may not be sealed tightly. Screw set-screw out to a small extent.
Assembly 5.4 Settings CAUTION Material damage due to erroneous settings! If the end position is approached too hard, the product may be damaged. Adjust exhaust throttle valve and shock absorber so that the movement is braked smoothly. For operation, the angle of rotation, the swiveling speed and the absorber stroke must be set.
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Assembly Optimal setting Movement End position Damping Time T Target time Swiveling speed and absorber stroke are optimal. Erroneous setting Movement End position Damping Time T Target time Swiveling speed too high. Assembly oscillates back. Movement End position Damping Time T Target time Absorber stroke is too long.
Assembly 5.4.1 Adjust swivel angle CAUTION Material damage due to incorrect settings! By incorrect setting of the swivel angle parts can come loose and the product may be damaged. Only trained stuff may set the swivel angle. Before setting the swivel angle release pressure. Version with clamp shell Loosen screw of the limiting sleeve (6) approx.
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Assembly Tighten screw (7). ð Tightening torque:SRU-plus20-30: 1,2 Nm ð Tightening torque:SRU-plus 35-50: 2,1 Nm Swivel repeatedly to test the setting, adjust if necessary. Version with limiting sleeves Loosen screw of the limiting sleeve (6) approx. one revolution. Actuate air connection B (4). Open exhaust throttle valve on air connection A (3) until the pinion (5) starts to move.
Assembly 5.4.2 Adjust swiveling speed CAUTION Material damage due to too high swiveling speed! If the swiveling speed is too high, the assembly will be decelerated abruptly by the shock absorber and will continue to oscillate until reaching the end position. This will overload the shock absorber and may cause damage to it.
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Assembly For the variants with pneumatic and locked center position, air supply throttle valves must be mounted to various air connections, } 5.2.2 [/ 29]. The sequence for setting the swivel speed with the air supply throttle valve is identical to the sequence with mounted exhaust throttle valve.
Assembly 5.4.3 Adjust absorber stroke CAUTION Material damage to the product possible! If the maximum adjustment range of the absorber stroke is exceeded, this can cause leaks in the product. When setting the absorber stroke, adhere to the maximum adjustment range. SRU-plus Max.
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Assembly NOTE If the absorber stroke is changed, the swivel speed might also need to be changed as well, so that the movement remains smooth, [/ 38]. } 5.4.2 ð IMPORTANT! If the stop pin is unscrewed too far, this may cause the rotary actuator to leak. By unscrewing stop pin A (4), the absorber stroke is reduced.
Assembly 5.4.4 Set center position Loosen screw (1) by approx. one revolution. Unscrew stops C (2) and D (6) to the limit sleeve (4). Actuate air connections C (3) and D (5) at the same time. ð Rotary actuator swivels to about 90° and has about 6° of play in this position.
Assembly 5.4.5 Set locked center position Depending on the start-up direction of stop A (11) or stop B (10), the center positions can be set the same or differently. Ventilate rotary actuator. Loosen screw (1) by approx. one revolution. Actuate air connection B (2). ð...
– The assembly and operating manual and catalog datasheet are included in the scope of delivery for the sensors and are available at schunk.com. Information on handling sensors is available at schunk.com or from SCHUNK contact persons. 5.5.1 Overview of sensors...
Assembly 5.5.2 Mounting MMS 22 magnetic switch CAUTION Material damage due to an incorrect tightening torque! If the threaded pin is tightened with an incorrect tightening torque, the product may be damaged. Observe a maximum tightening torque of 10 Ncm for the set- screws.
Assembly Ventilate air connection A (4). Actuate air connection B (3). ð Pinion (2) swivels into the other end position. Slide the second magnetic switch (6) into the other groove (5). Or: Screw magnetic switch (6) into the other groove (5) (1). Slide magnetic switch (6) until it switches and the LED (7) illuminates.
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Assembly Connect magnetic switch and secure cable, see sensor assembly and operating manual. Actuate air connection A (4). ð Pinion (2) swivels towards the end position. Slide the first magnetic switch (6) into a groove (5). Or: Screw magnetic switch (6) into a groove (5) (1). Adjust magnetic switch (6), see Sensor Assembly and Operating Manual.
Assembly 5.5.4 Mounting inductive proximity switch IN 80 CAUTION Material damage to the product or sensor possible! If the fast clamping sleeve is inserted too far into the sensor bracket, the switch cam and the sensor may collide during swiveling. Do not insert the fast clamping sleeve too far into the sensor bracket.
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Assembly ð IMPORTANT! For the variant with electrical feedthrough (EDF), a seal must additionally be placed between cam disk and distributor plate. Connect sensor and secure cable, see sensor assembly and operating manual. Remove the corresponding cover disk on the housing (5). Screw bracket (9, 10, 11) into the countersink of the housing (5) provided until the clamping sleeve (4) can still be turned.
Start-up 6 Start-up 6.1 Setting ranges of the variants Adjustment range / Swivel range Central position Adjustment range / Adjustment range / Final angle Final angle Piston Piston Centering sleeves End position adjustability 3° Swivel range Adjustment range / Final angle Adjustment range / Start angle Piston...
Start-up 6.3 Center position NOTE The center position can be adjusted by ± 3°. By design, overshooting can occur in the center position. Move to basic setting 90° (center position) Actuate air connection "C" and "D" together, pinion begins to move. ð...
Start-up 6.4 Locked center position WARNING Risk of injury due to unexpected movement of the machine/system! In an EMERGENCY STOP situation, the center position lock can come loose. Swivel the product to one of the end positions to restart. CAUTION Damage due to erroneous control! Erroneous control may damage the pistons.
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Start-up Electrical circuit diagram actuation with two 5/3 directional control valves, example 14.00 | SRU-plus 20 - 60 | Assembly and Operating Manual | en | 389443...
Start-up 6.5 Locked center position with separate piston chambers WARNING Risk of injury due to unexpected movement of the machine/system! In an EMERGENCY STOP situation, the center position lock can come loose. Swivel the product to one of the end positions to restart. WARNING Risk of injury due to unexpected movement of the machine/ system!
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Start-up Electrical circuit diagram holding the load at 0° The following actuation is advantageous for variants from size 35 and larger depending on the application: A brief ventilation while the lock is being released ensures smooth travel to the limit position. Exhaust air throttle valves can be used for air connections "A1"...
} 5.4.1 [/ 36] Pressure drops below minimum. Check air supply. } 5.2.2 [/ 29] Components have come loose e.g. due to Send product with a SCHUNK repair order or overloading. dismantle product. Shock absorber defective. Check or, if need be, replace the shock absorber.
Troubleshooting 7.4 Product does not move Possible cause Corrective action Component part defective. Replace component or send it to SCHUNK for repair. Have Schunk check the application. Pressure drops below minimum. Check air supply. } 5.2.2 [/ 29] Compressed air lines switched.
Danger of explosion in potentially explosive areas! Observe supplementary sheet for products with explosion- resistant versions "SRU-plus -...-EX". Original spare parts Use only original spare parts of SCHUNK when replacing spare and wear parts. 8.2 Maintenance interval CAUTION Material damage due to hardening lubricants! Lubricants harden more quickly at temperatures above 60°C,...
Wear safety goggles and protective gloves. Observe information on the safety data sheet of the lubricant. During maintenance, treat all greased areas with lubricant. Thinly apply lubricant with a lint-free cloth. SCHUNK recommends the lubricants listed. Lubricant point Lubricant The teeth and the pinion Rivolta F.L.G.
8.4 Inspect and set shock absorbers 8.4.1 Inspect shock absorbers The shock absorbers are specially tested and can only be acquired from SCHUNK. The shock absorbers have a limited lifespan, depending on the load. Regulary check that the shock absorbers are working.
Maintenance 8.5 Servicing shock absorber 8.5.1 Servicing shock absorbers (absorber variant -W) Undo the screws (1). Pull off the stop cover (2). Remove the safety ring (4) from the piston. Pull out the piston rod (3) and remove the compression spring (5). Pull out the piston (7) with the guide sleeve (6) and dampening ring (8).
Maintenance 8.5.2 Servicing shock absorbers (absorber variant -S) Undo the screws (1). Pull off the stop cover (2). Remove the safety ring (4) from the piston. Pull out the piston rod (3) and remove the absorber (5). Use the M5 thread to pull out the cover (7) and dampening ring (6).
Maintenance 8.6.2 Replacing external shock absorber (locked center position) Fix stop (1) and unscrew the sealing nut (4) of the shock absorber (3). Turn shock absorber (3) out of the stop (1). Mount O-ring (2) on new shock absorber. Screw sealing nut (4) onto the shock absorber (3) Screw in new shock absorber as far as possible.
Maintenance 8.6.3 Replace internal shock absorber (locked center position) WARNING Risk of injury due to spring forces! In the interior of the centering housing (locked center position variant), a pre-loaded compression spring can be found. Carefully dismantle the product. Unscrew screw (5) on stops C and D (4) one turn. Unscrew bolt (3) of the limiting sleeve.
Maintenance Tighten screw (3) and then loosen approx. 1/4 revolution. Swivel repeatedly to test the setting, if necessary set again } 6.4 [/ 53]. 8.7 Disassembly and assembly 8.7.1 Dismantling and assembling rotary actuator (base unit) Ventilate rotary actuator. Remove all air connections, } 5.2.2 [/ 29].
Maintenance 8.7.2 Dismantle and assemble rotary actuator (center position/ locked center position) Ventilate rotary actuator. Remove all air connections, [/ 29]. } 5.2.2 Dismantle sensors if necessary. Unscrew screws (10) and remove both stop covers (9). Unscrew screw (4) on stops "C" and "D" (5) one turn. Unscrew screw (3) of the limiting sleeve.
Maintenance 8.7.4 Dismantling and assembling rotary actuator (EDF) Ventilate rotary actuator. Remove all air connections, [/ 29]. } 5.2.2 Remove all energy lines, [/ 31]. } 5.2.3 Unscrew screws (13) and remove both stop covers (12). Unscrew screw (7) on stops "C" and "D" (8) one turn. Unscrew screw (6) of the limiting sleeve.
Maintenance 8.8 Assembly drawings 8.8.1 Overview of the components Overview of the assembly drawings Basic components with and without fluid feed-through } 8.8.2 [/ 72] Variant "explosion-protected version" Stop-side locked center position (VM) } 8.8.3 [/ 74] Stop side, end position adjustability 90° } 8.8.4 [/ 74] Stop side, end position adjustability 3°...
Maintenance 8.8.2 Basic components without fluid feed-through Contained in seal kit. Contained in accessory pack. Variants "explosion-protected version" does not include a ⑩ clamp shell. They are clamped by an eccentric. 14.00 | SRU-plus 20 - 60 | Assembly and Operating Manual | en | 389443...
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Maintenance with fluid feed-through Contained in seal kit. Contained in accessory pack. Variants "explosion-protected version" does not include a ⑩ clamp shell. They are clamped by an eccentric. 14.00 | SRU-plus 20 - 60 | Assembly and Operating Manual | en | 389443...
Maintenance 8.8.3 Fitting locked center position 8.8.4 Locating face end position adjustability 90° 8.8.5 Anschlagseite Endlageneinstellbarkeit 3° Contained in seal kit. 14.00 | SRU-plus 20 - 60 | Assembly and Operating Manual | en | 389443...
Maintenance 8.8.6 Addition locked middle position 8.8.7 Piston and cover basic unit 8.8.8 Addition center position Contained in seal kit. ** Contained in accessory pack. 14.00 | SRU-plus 20 - 60 | Assembly and Operating Manual | en | 389443...
9 Translation of the original declaration of incorporation in terms of the Directive 2006/42/EG, Annex II, Part 1 Section B. Manufacturer/ SCHUNK SE & Co. KG Distributor Toolholding and Workholding | Gripping Technology | Automation Technology Bahnhofstr. 106 - 134...
UKCA declaration of incorporation 10 UKCA declaration of incorporation in accordance with the Supply of Machinery (Safety) Regulations 2008. Manufacturer/ SCHUNK Intec Limited Distributor Clamping and gripping technology 3 Drakes Mews, Crownhill MK8 0ER Milton Keynes We hereby declare that on the date of the declaration the following partly completed machine complied with all basic safety and health regulations found in the "Supply of Machinery (Safety) Regulations 2008".
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SCHUNK SE & Co. KG Toolholding and Workholding | Gripping Technology | Automation Technology Bahnhofstr. 106 - 134 D-74348 Lauffen/Neckar Tel. +49-7133-103-0 info@de.schunk.com schunk.com Folgen Sie uns I Follow us Wir drucken nachhaltig I We print sustainable...
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