Used Kemmerich Vd 3000 - 500 for sale (19,422)

Condition: used, functionality: fully functional, actuation type: manual, coil weight: 3,000 kg, coil width: 500 mm, mandrel diameter: 508 mm, turntable diameter: 1,480 mm, Load capacity: 2x 3000 kg Floor to center of mandrel: 1020 mm Outside diameter of stop: 1480 mm Mandrel length: 560 mm Mandrel nominal diameter: 508 mm Coil limiter rings: on both sides Braking: handwheel, band brake Mandrel expansion: threaded spindle with socket wrench Rotating bearing locking: foot pedal Operated flawlessly in production at the customer's facility until dismantling. We can assist you with integration through: Planning Kjdpfx Aoy Smfqearslt Mechanical overhaul Control engineering Painting Safety concept CE documentation

Condition: used, functionality: fully functional, coil weight: 3,000 kg, mandrel diameter: 508 mm, mandrel length: 620 mm, turntable diameter: 1,400 mm, Load capacity: 2 x 3000 kg Distance from floor to center of mandrel: 950 mm Outer diameter of stop: 1400 mm Mandrel length: 620 mm Mandrel nominal diameter: 508 mm Coil guide rings: on both sides Braking: pneumatic, brake disc/caliper Unwinding drive: electric, geared motor Mandrel expansion: threaded spindle with socket wrench Locking of rotary bearing: foot pedal with electrical documentation Operated flawlessly in production up to the point of dismantling at the customer's plant. We can support you with the following during integration: Planning Mechanical overhaul Control system construction Painting Kljdpfx Ajy Smciearot Safety concept CE documentation

Condition: used, functionality: fully functional, coil weight: 2,000 kg, mandrel diameter: 508 mm, mandrel length: 420 mm, turntable diameter: 1,350 mm, Load capacity: 2 x 2000 kg Distance from floor to center of mandrel: 950 mm Outer diameter of stop: 1350 mm Mandrel length: 420 mm Mandrel nominal diameter: 508 mm Kledpfxjy Sl Rxe Aaret Coil guide rings: on both sides Braking system: pneumatic, brake disc/caliper Unwinding drive: electric, geared motor Mandrel expansion: threaded spindle with Allen key Locking of rotary bearing: foot pedal with electrical documentation Operated flawlessly in production at the customer's facility until decommissioning. We can support you with the following during integration: Planning Mechanical overhaul Control system construction Painting Safety concept CE documentation

Condition: excellent (used), approx. 3000 m² steel construction platform 2-storey used, good condition, see pictures Manufacturer STOW Length approx. 58,5 m Kledpfx Aaed S S E Ueret Width approx. 54,6 m height lower edge 3,4 m Height upper edge 3,7 m Load 500 kg/m² C-profiles and sigma-profile construction fixed with screws and nut Grid spacing adjustable in length floor structure is 38 mm chipboard, highly compressed, tongue and groove underside white, upper side grey coated Negotiated price: Offer on request! Partial sale possible! Dismantled and loaded Goods are in stock. Transport costs are available on request. Visits possible at any time by appointment. Further information on request. Constantly over 5000 running meters of pallet racking from numerous manufacturers in stock. (Changes and errors in the technical data, information and prices and subject to prior sale! See our AGB, all prices excl. VAT from stock) Purchase / Sale We are constantly looking for and offering numerous articles from various areas clean-swept premises Liquidations Fast - flexible - ready to hit! We also clear and - or dispose for liquidators. Write to us with a few keywords and we will contact you immediately. To get to our site, please click on our logo!

Condition: ready for operation (used), A complete punching system with a grid punch is available. 1) Reel Gebrüder Kemmerich 7VID, year of manufacture: 1981, max. load: 1000kg. 2) Straightening machine, max. material width: 300mm, max. material thickness: 2mm. 3) Feed unit Alba UVHY 300/0.1, feed speed: 6.5m/min, max. material width: 300mm, max. material thickness: 4mm, transport rollers: 2. 4) Punching grid HR 50/600 NL, stroke rate: 300/min, stroke: 30mm-80mm. On-site inspection is possible. Kodpfxew Az R Aj Aarjlt

Condition: used, Pay-off and Take-up Decoiler KEMMERICH / STANGE Type HA 1500 / 500 Serial No. 51673 Year of Manufacture: 2023 (unused) Maximum coil weight: 1500 kg Coil width with guide arms: 500 mm Coil width without guide arms: 670 mm Coil inner diameter: 300 - 370 mm Klodpfxsua Nnge Aarot Coil inner diameter with extension jaws: approx. 380 - 440 mm Decoiler turntable diameter: Ø 2080 mm Coil outer diameter without pressure arm: max. 2350 mm Coil outer diameter with pressure arm: max. 2200 mm Center of turntable to decoiler base: 1200 mm Decoiler shaft, support shaft: Ø 70 mm Speed: approx. 1.5 to 20 rpm Motor power: 1.1 kW Power supply: 400 Volt, 50 Hz - stepless turntable speed adjustment via frequency converter - loop switch / proximity switch for decoiler STOP - central expansion via hand crank - clockwise and counterclockwise rotation - pneumatic pressure arm with running roller - 4 guide arms, 870 mm each - 4 plastic extension jaws for adapting the turntable Space requirement (L x W x H) Weight: 970 kg Very good condition

Condition: used, Year of construction: 1969, turning diameter over bed 500 mm turning diameter over slide rest 330 mm turning diameter in the gap 600 mm turning length 3000 mm bed width 505 mm spindle bore 72 mm spindle head DIN 55022 Gr. 8 taper in tailstock MK 5 turning speed range 22,4- 1120 U/min power requirement 18,5 kW dimensions 5,3 x 1,75 x 1,53 m weight of the machine ca. 5,2 t used lathe in nice condition with digital scale - 2 axis digital scale - 4 jaw chuck Ø 250 mm - 3 jaw chuck Ø 260 mm - Multifix "C" toolholder system - some toolholders Klodey Tyy Djpfx Aarjt - steady

Condition: good (used), CSF Fryer Model BRN 3000 / 500 Terminal fluid heating system In everyday use Klsdpfx Aasxr Rugsret Price € 10,950.00 We can organise shipping

Condition: used, The GEA oil fryer is used for flash or deepfrying coated and uncoated products. It is suitable for meat, fish, poultry, cheese, vegetables, potatoes and vegetarian dishes. all stainless steel electrically heated Kedpsy Ednisfx Aarjlt 72 kW heating capacity 75 kW total connected power net frying length : ± 3.000 mm net belt width : ± 500 mm in- and outfeed belt teflon infeed belt adjustable speed sediment removal system filter suitable for fire protection mechanical hoists dimensions (l x w x h) : ± 6.300 x 1.700 x 3.100 mm

Condition: used, Dematic conveyor accumulating roller conveyors 2625-500-440 RA1995 Accumulating roller conveyor Nominal/outer width (NB): 500 mm Available conveyor lengths (FL): 2625 mm, expandable with further pieces Further information Manufacturer: Siemens Dematic Type: Accumulation roller conveyor Accumulation size: 750 mm Year of manufacture: unknown Condition: good (used) roller width (RB): 440 mm roller pitch: 125 mm variable drive type: SEW gear motor weight of conveyed material: up to 30 kg Accumulating mechanics: Light barriers with pneumatic valve and cylinder The following accessories are optionally available e.g.: Frequency converter supports side guides Price: on request plus VAT ex central warehouse Dr. Sonntag GmbH & Co. KG 97076 Würzburg For individual, professional advice, simply contact us. Klsdpfxek Abrns Aaret Simply contact us by phone or e-mail. We will be happy to help you with the planning and implementation of your projects. We look forward to hearing from you. With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: used, Year of construction: 2001, Lippert belt conveyor GF 3000-650-500 RA1410 The Lippert conveyor belt is from 2001 and in good (used) condition. The belt conveyor has a SEW motor with MOVIMOT frequency inverter to control the speed. Lateral guides and/or light barriers can be installed on request at extra cost. Supports are not included in the delivery. These are optionally available on request. The pictures of the conveyor system shown here were taken in a logistics center while still installed. Kljdpsk Aa U Dsfx Aarst Technical data: Conveying length (NL): 3000 mm Framework width (NB): 650 mm belt width (GuB): 500 mm height (BH): 105 mm support feet: optionally available Conveying speed (v m/s): adjustable up and down with frequency converter Drive: SEW gear motor S37 DT71D4/MM03/BW1 Electrical data: 50Hz V380-500, kW 0.075 / 0.37 / S1 Deflection roller (UR): Ø = 34 mm Drive drum (UR): Ø = 81 mm Belt: Type SNB-8E Year of construction: 2001 Optionally available: Supports Side guides Prices net plus VAT from central warehouse Dr. Sonntag GmbH & Co KG, 97076 Würzburg For individual, professional advice, simply contact us. Simply contact us by phone or e-mail. We will be happy to help you with the planning and implementation of your projects. We look forward to hearing from you. With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: new, Year of construction: 2025, load capacity: 500 kg, 3-Axis Rotation and Tilting Positioner – 500, 1000, 2000, 3000 kg Load Capacity, Clamping Plate Diameter 0.5, 0.65, 0.8, 1.0 meters HDL 500: - Minimum height: 1000 mm - Maximum height: 1500 mm - Clamping plate diameter: 500 mm - Reach radius: 800 mm (cantilever) - Speed: 0.1 – 1 rpm These positioners have proven themselves in the fields of construction and agricultural machinery, commercial vehicles, industrial trucks, as well as in the aerospace and energy sectors. They are suitable for welding, assembly, machining, and more. With their stable and robust construction, flexible three-axis positioning (including overhead), and easy operation, they facilitate welding, assembly, and handling of large workpieces. - Faster production and increased productivity Kodpjulaxbjfx Aarelt - Optimal positioning of the workpiece improves welding quality and enables higher deposition rates - Enhanced safety by significantly reducing dangerous crane handling - Simultaneous positioning along up to three axes without cumbersome re-clamping - Easy and ergonomic operation protects and relieves the operator - Flexibility thanks to modular adaptability and custom configurations Basic Principle: Due to the arrangement of the swivel arm rotation axis above the clamping plate, the arm acts as a counterweight to the workpiece. As a result, these machines are significantly more powerful than tilt rotary tables or tilt-rotational positioners. This principle allows handling of the specified loads in any position. Thanks to the endless rotation of two axes and additional height adjustment, all workpiece positions (including overhead) are possible. Table rotation speed is continuously adjustable from 0.1 to 1.0 rpm; from 2000 kg load capacity, 0.05 to 0.6 rpm. Supplied with wireless remote control. - Rotation range: 360° continuous - Swivel range: 360° continuous - Lift: 1000 – 1500 mm; from 2 tons load capacity: 1250 – 2000 mm - Arm outreach up to 1000 kg: 1 meter; from 2000 kg: 1.5 meters

Condition: good (used), GURUTZPE second hand lathe Brand: GURUTZPE Model: Super-A 3000/500 Klsdpfx Aeh Ryfhoaret No.: 232 Distance between points: 3000mm Cane pitch: 325mm Center height: 500mm Maximum turning diameter: 1400mm Maximum diameter on bench: 1000mm Maximum diameter over trolley: 740mm Speeds: 16 Visualizer: FAGOR Model: NV 300T It includes: - Dish - Lunettes

Condition: refurbished (used), Roller hearth furnace, make Mahler type: RHEE 500/100/3000-6500 refurbished: 2016 max. charge weight: 40 kg/m nominal throughput: 288 kg/h clear roll width: 500 mm clear height above roll: 100 mm Kedpfofc Hbdex Aarslt furnace length: approx. 22100 mm working temperature: - Warm-up zone: 800-1000°C - High temperature zone 800-1250°C heating: electric connected load: 400 kW gases used: nitrogen, hydrogen

Condition: used, Dematic conveyor system Roller conveyors 3000/2500/2000/1500/1000-400-440 RA1947 Gravity conveyors - roller conveyors without drive Kjdpfx Aaovm Ez Uorjlt Nominal/outer width (NB): 500 mm Available conveyor lengths (FL): 3000 mm, 2500 mm, 2000 mm, 1500 mm, 1000 mm Further information Manufacturer: Dematic Type: Roller conveyor Year of manufacture: unknown Condition: good (used) Roller width (RB): 440 mm Roller pitch: 62,5-125 mm variable Drive types: none or head and center drive Weight of conveyed goods: up to 30 kg Optionally available e.g: Motors with and without frequency inverter from SEW Eurodrive / Movimot Supports Side guides Price: net plus VAT ex central warehouse Dr. Sonntag GmbH & Co. KG 97076 Würzburg For individual, professional advice, simply contact us. Simply contact us by phone or e-mail. We will be happy to help you with the planning and implementation of your projects. We look forward to hearing from you. With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: used, Year of construction: 2012, Dematic conveyor system Accumulating roller conveyors Roller conveyor 3000-600-540, 750 RA2290 Kledpfx Aotp Tv Toarst Manufacturer: Dematic Type: Drive unit accumulating roller conveyor Year of construction: 2012 Condition: good (used) Roller width (RB): 540 mm Element length: 3000 mm, optionally shortenable Stowage space size: 750 mm Roller pitch: 62.5-125 mm variable Drive types: Head and center drive Weight of conveyed goods: up to 30 kg Technical data: SEW geared motor 380V RA2290.1 Manufacturer: Dematic Type: Accumulation roller conveyor extension module Year of manufacture: 2012 Condition: good (used) Roller width (RB): 540 mm Element length: 3000 mm, optionally shortenable Stowage space size: 750 mm Roller pitch: 62.5-125 mm variable Drive types: Overdrive from RA2290 (necessary) Weight of conveyed goods: up to 30 kg Optionally available e.g: SEW Eurodrive / Movimot frequency inverter Supports Side guides Price: on request plus VAT ex central warehouse Dr. Sonntag GmbH & Co. KG 97076 Würzburg For individual, professional advice, simply contact us. Simply contact us by phone or e-mail. We will be happy to help you with the planning and implementation of your projects. We look forward to hearing from you. With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: used, Technical details: x-travel: 6500/13150 mm y-travel: 4000 mm z-travel: 1250 mm w-axis: 2250 mm table surface area: 5500/12150 x 3000 mm max. workpiece weight: 70.000/105.000 kg ram head dimension: 480 x 510 mm milling spindle motor: 63 kW max. torque on the spindle: 3300 Nm Kledpfxjwc A She Aarjt tool taper: DIN 39871 AD ISO 50 milling head speed: 6,3 - 4000 U/min feed speeds: 1 - 24000 mm/min w-axis: 1 - 6000 mm/min. distance between columns: 3500 mm passage: 3000 mm total power requirement: 120 kW weight of the machine ca.: 245 t dimensions of the machine ca.: 29,0 x 7,7 x 8,1 m The machine is in mint condition and was generally overhauled in 2020! with CNC SIEMENS 840 D autom. tool magazine for 153 tool stations autom. milling head magazine for 6 heads milling heads - straight - straight extended length - milling head -angular head standard - 4000 rpm, 144 x 2,5°, ISO 50 milling head -angular small extended length -40 kW, 4000 rpm, 1800 Nm, 144 x 2,5°, ISO 50 milling head -universal index - 40 kW, 4000 rpm, 2100 Nm, C-axis 144 x 2,5° , B-axis +/- 44 x 2,5°, ISO 50 coolant attachment, chip conveyor *

Year of construction: 2025, condition: new, Volumetric cup filler for free-flowing granular products (rice, salt, sugar, etc.). - Specifications: filling range: 1-100ml; volume of hopper: 30L; number of dosing cups: We select a suitable cup version for you (1 or more heads) according to your product and the required filling quantities. Kedjv Nnlhspfx Aarelt Please note that our new prices are often below the usual used prices. Please feel free to inquire and tell us your packaging task. - Usually 30-50 different new machines are available immediately from stock. In addition, we have very short delivery times from approx. 3 weeks for customized machines. Deviations from the sample photo are possible. - All machines are available with full warranty.

Condition: new, Year of construction: 2025, Volumetric cup filler for free-flowing granular products (rice, salt, sugar, etc.). - Specifications: filling range: 1-100ml; volume of hopper: 30L; number of dosing cups: We select a suitable cup version for you (1 or more heads) according to your product and the required filling quantities. Please note that our new prices are often below the usual used prices. Please feel free to inquire and tell us your packaging task. - Usually 30-50 different new machines are available immediately from stock. In addition, we have very short delivery times from approx. 3 weeks for customized machines. Deviations from the sample photo are possible. - All machines are available with full warranty. Kedpfx Aov Nnl Isarjlt

Condition: as good as new (ex-display), Suitable for shelf rack: Shelving system: SSI Schäfer Type: R 3000 Included in delivery: 01x crash barrier, II. choice Material color: yellow/ black/ galvanized total height: 400 mm total depth: 180 mm clear width: 500 mm Consisting of respectively: 01x CS Sigma profile, II. choice Material color: sendzimir galvanized profile dim.: 300 x 75 x 15 mm Profile type: CS300-2.0 Klodpjib H D Esfx Aarst material thickness: 2,0 mm length: 400 mm 02x L - collision protection corners, new material color: yellow/ black according to DIN standard total height: 400 mm leg length: 170 x 170 mm material thickness: 5 mm Weight/piece: 6,10 kg 08x screws: M12 08x nuts: M12 16x washers: M12 The crash barrier is delivered completely pre-assembled.

Condition: new, Technical data for the shelf rack upright: Shelving system: SSI Schäfer Type: R 3000 Included in delivery: 01x shelf rack upright, new goods Material color: sendzimir galvanized Kledpfspbwahjx Aarjt profile dim.: approx. 60 x 30 mm Incl. bulkhead and base plates The uprights are unassembled 2.490 mm high 500 mm deep Remark: The shelving uprights are supplied unassembled when ordered unassembled when ordered. For an extra charge of 7,50 € / piece plus VAT we can also preassemble the also pre-assemble the uprights. Your contact person in our company: Mr.: Andre Evering Mr.: Mario Klöver Mr.: Falk Deutsch General information about the item: This item is offered for pickup only. A desired transport or shipment of this or a shipment of this article is associated with additional costs, which can be requested separately depending on the delivery location or scope of delivery can be requested from us.

Year of construction: 2022, condition: new, Highlights of our two extraction systems Eco 3000 and Eco 5000 +Solid sheet metal construction ensures ideal flow conditions +resistant wind impeller +constant extraction performance even under constant stress + Connection of up to a maximum of 3/4 machines possible using the supplied distributors +high suction power due to large filter surface (filter dimensions: ø500x1100mm) +Integrated driving device for easy manoeuvring Scope of delivery: Running gear, filter and chip bag, distributor (connection for 3/4xø100mm suction pipes), incl ---- Device available in two designs: *in the following marked with position 1) and 2) 1) Extraction system Eco 3000 - 1.5 kW * with a chip bag and an industrial polyester filter Motor power S1 in W 1500 Installation dimensions in mm 985x560x2250 Extraction capacity in m³/h: 3,000 Suction outlets 3x (ø100mm) Negative pressure in Pa: 2200 Klsdpsidma Nsfx Aaret 2) Extraction system Eco 5000 - 2.2 kW * with two chip bags and two industrial polyester filters Motor power S1 in W 2200 Installation dimensions in mm 1540x560x2270 Extraction capacity in m³/h: 5,000 Suction outlets 4x (ø100mm) Negative pressure in Pa: 2600 --- Information applies to both devices: Sound pressure level in dB(A) < 85 dB Voltage: 400V / 50Hz *Option: also available in 230 V Chip bag diameter in mm: 500 Chip bag length in mm: 850 Delivered in a box for self-assembly in a few steps The filters must be cleaned manually at regular intervals. Surcharge for suction with automatic cleaning + €4,700 net

Condition: excellent (used), Year of construction: 2023, functionality: fully functional, We offer you the following: Manufacturer: DMG MORI Model: NTX 3000/1500 Year of manufacture: 2023 Control: DMG Mori Celos with Fanuc F31iB5 Technical specifications: Max. turning diameter: 670 mm Turning length: 1,519 mm Bar capacity: max. 102 mm Travels: x1-axis: 675 mm y-axis: +/- 150 mm z1-axis: 1,562 + 164 mm b-axis: +/- 120° a-axis: 1,542 mm Klsdpoy Sfx Nefx Aaret x2-axis: 200 mm y2-axis: +/- 40 mm z2-axis: 1,542 mm Main spindle: Max. speed: 3,000 rpm Drive power: 30/25 kW Torque: 1,194/995 Nm Spindle nose: JIS A2-8 Spindle bore: Ø 111 mm Counter spindle: Max. speed: 4,000 rpm Drive power: 18.5/18.5/15 kW Torque: 599/505/409 Nm Spindle nose: JIS A2-8 Spindle bore: Ø 91 mm Milling spindle: Speed range: 0 – 12,000 rpm Drive power: 28/23 kW Torque: 132/95.3 Nm Tool holder: Capto C6 Number of tool stations: 76 positions Max. tool diameter: Ø 70/Ø 130 mm Max. tool length: 400 mm Max. tool weight: 8 kg Turret: Number of tool holders: 12 positions Speed of driven tools: 12,000 rpm Tool holder: BMT40 Torque: 16.9 Nm Rapid traverse speeds: x-axis: 50 m/min y-axis: 40 m/min z-axis: 50 m/min a-axis: 36 m/min x2-axis: 25 m/min y2-axis: 18 m/min z2-axis: 40 m/min b-axis: 100 rpm Operating hours: approx. 4,500 h Spindle hours: approx. 2,200 h Technical features & accessories: − Hydraulic 3-jaw chuck, manuf. SMW KNCS-N-400-128 incl. hollow clamping cylinder for main spindle − Hydraulic 3-jaw chuck, manuf. SMW KNCS-N-260-78-3Z incl. hollow clamping cylinder for counter spindle − Foot switch for chuck operation − Automatic clamping stroke monitoring of the clamping cylinder for main and counter spindle − Tailstock function for counter spindle − Magazine-side control panel for the tool magazine − Coolant: water-soluble coolant − Chip conveyor (right discharge) − Coolant temperature control/coolant chiller − Coolant spray gun − Float switch for coolant − Coolant shower at main and counter spindle chucks − Compressed air blow-off system for chuck (counter spindle) − Oil mist separator zeroGOF #2 − Oil separator − ICS 70 bar, TMF300 band filter system, 980 l tank − Manual tool presetting device for main and counter spindle − Direct measuring system in x1, x2, y, z1, z2 axes − Spindle sensor measuring system with wireless signal transmission, manuf. Renishaw RMP600 − Universal filter − 3D quickSET − Cycle Alternating Spindle Speed − Cycle "Tailstock Tip at Turret" − Cycle MPC – Machine Protection Control − Cycle MVC – Machine Vibration Control − Synchronous thread cutting without compensating chuck − Increased input resolution to 0.0001 mm − Cs control for tool spindle − Program restart Accessories, illustrated tools, and clamping devices are only included if specified in the additional information. Technical data and details subject to change, errors and prior sale excepted!

Condition: good (used), Platform trolley, transport trolley, heavy-duty trolley, table trolley, assembly trolley, industrial trailer, container dolly, double turntable steering, heavy-duty trailer -Heavy-duty transport wagon: Industrial trailer with 2-axle turntable steering -Platform: 3000/1500/H545 mm -Load capacity: 3.5 t -Tires: 75x305/400 Kjdet U Ttkepfx Aarelt -Drawbar: reversible, double-sided trailer coupling Quantity: 1 piece available -Overall dimensions: 4730/1500/H545 mm -Weight: 470 kg

Condition: used, Year of construction: 1994, material width 500 mm coil weight 3,0 t material thickness 0,2 - 2,5 mm coil internal diameter 470 - 530 mm coil external diameter 1400 mm no. of straightening rolls 9 straightening roll diameter 40 mm Kljdpfx Aovut Eqsaret number of inlet and outlet rolls 4 material cross-cut 1200 mm² speed 1,5 - 30 m/min dimensions decoiler (WxDxH) 1,9 x 0,6 x 1,7 m weight decoiler 1,1 t dimensions straightener (WxDxH) 3,3 x 1,3 x 2,7 m weight straightener 3,0 t - Straightening machine RYD 40 x 500 with infinitely variable drive (driven lower straightening rolls), straightening rolls individually adjustable by motor, supporting rolls, outlet roller basket - Decoiler DY 500 x 3000 with hydraulic auxiliary drive, pneumatic lag brake, hydraulic expansion, hydraulic snubber roll, hydraulic insertion aid, hydraulic coil lifting device - coil loop control