Used Cormak Belt Grinding Machine for sale (69,146)

Condition: ready for operation (used), Year of construction: 2006, functionality: fully functional, machine/vehicle number: 2449-01, grinding width: 1,350 mm, grinding height: 150 mm, feed rate X-axis: 12 m/min, grinding wheel diameter: 1,380 mm, TECHNICAL DETAILS Workpiece dimensions (length x width) min.: 30 x 30 mm Workpiece dimensions (width x height) max.: 1,350 x 150 mm Abrasive belt dimensions: 1,380 x 1,900 mm Disk diameter: 1,380 mm Abrasive belt unit speed: 8–22 m/s Disk unit speed: 10–22 m/s Feed rate (frequency-controlled): 2–12 m/min MACHINE DETAILS Electrical specifications Feed motor (frequency-controlled): 2.6 kW Abrasive belt (W): 18.5 kW Disk (RD): 12.9 kW Kljdsyx Hhxepfx Ampjr Electrical connections: 400 V Frequency: 50 Hz Control current: 110 A EQUIPMENT Disk unit (RD) with abrasive fleece disc 2 abrasive belt units (W) placed before and after the disk unit

Condition: ready for operation (used), Year of construction: 2021, functionality: fully functional, grinding length: 1,600 mm, grinding width: 500 mm, workpiece weight (max.): 900 kg, grinding wheel diameter: 355 mm, rapid traverse X-axis: 1 m/min, travel speed (max.): 25 mm/min, TECHNICAL DETAILS Table size: 500 x 1,600 mm Max. grinding area: 500 x 1,600 mm Max. distance from spindle center to worktable: 600 mm Load capacity (with magnetic chuck): 900 kg Axis parameters Longitudinal feed speed: 5–25 m/min Cross rapid traverse (X-axis): 50–1,000 mm/min Cross feed, incremental: 1–20 mm/stroke Cross hand feed (MPG): 0.005 mm/click Vertical rapid traverse (Z-axis): 50–500 mm/min Vertical automatic feed: 0.005–0.04 mm/stroke Vertical hand feed (MPG): 0.005 mm/click Grinding wheel Dimensions (outside diameter x width x bore): 355 x 20~50 x 127 mm Spindle speed: 1,440 rpm Drive capacities Spindle motor: 7.5 kW Hydraulic pump motor: 3 kW Servo motor, cross feed: 0.5 kW Servo motor, vertical feed: 2 kW Coolant pump: 0.125 kW Lubrication pump: 0.06 kW Total connected load: 14 kVA MACHINE DETAILS Dimensions & weight Required installation space: 7,120 x 2,550 mm Height: 2,700 mm Machine weight: approx. 6,000 kg EQUIPMENT PLC + HMI automatic grinding control Integrated control for magnetic chuck Coolant tank Balancing arbor Grinding wheel flange and puller Wheel dresser stand MPG handwheels for Y/Z axis Operating manual Splash guard Ksdpfx Asyymkcjmpjlr Standard grinding wheel Levelling wedges and bolts

Condition: ready for operation (used), functionality: fully functional, grinding wheel width: 100 mm, grinding wheel diameter: 350 mm, overall weight: 2,000 kg, The machine was retrofitted and modernised in 2025. The modernisation includes the addition of automatic loading and automatic cycle functions. The user interface and control panel are available in English, German, and French. TECHNICAL DETAILS Grinding wheel dimensions (outer diameter x inner diameter x width): 350 x 127 x 100 mm Grinding wheel width: 100 mm Klsdpsyym Emjfx Ampor Grinding wheel speeds: Infinitely variable Regulating wheel speed: 10 - 250 rpm Feed: Automatic Regulating wheel dimensions (outer diameter x inner diameter x width): 230 x 76.2 x 100 mm Regulating wheel width: 100 mm Maximum length to be straightened: 200 mm Workpiece diameter to be straightened: 1.5 - 50 mm MACHINE DETAILS Dimensions & Weight Dimensions (L x W x H): 1,800 x 1,300 x 1,600 mm Weight: 2,000 kg EQUIPMENT New coolant tank with paper filtration system

Condition: used, Year of construction: 1998, functionality: fully functional, machine/vehicle number: 80317, input voltage: 380 V, travel distance X-axis: 4,400 mm, travel distance Y-axis: 2,300 mm, travel distance Z-axis: 235 mm, Machine full working order use every week Kledpjy Au Rpefx Amper

Condition: used, Year of construction: 1989, MAKE GER, MADE IN SPAIN MODEL RS 10/60 YEAR TABLE LENGTH 1300.0 mm TABLE WIDTH 600.0 mm TRAVEL X AXIS: 1600.0 mm Y AXIS: 600.0 mm MAX DISTANCE (TABLE TO WHEEL) 800.0 mm MAX WORKPIECIE WEIGHT 1000 KGS GRINDING WHEEL SIZE 400.0 x 100.0 x 127.0 mm SPINDLE SPEED MAX 1500 RPM MACHINE DIMENSIONS 4600.0 x 2700 x 2600.0 mm MACHINE WEIGHT 7600 KGS PLUS ELECTROMAGNETIC CHUCK SIZE: 1000.0 X 600.0MM HYDRAULIC PACK Klodpfx Ajy Du N Uompjr COOLANT SYSTEM WHEEL MOUNTED DRESSER

Condition: ready for operation (used), tool grinding machine working perfectly Kledpfx Ameyw N D Topjr

Condition: used, Model: CW Serial No: 26520 Capacities: Maximum Swing Over Bed: 430mm Maximum Distance Between Centres: 2500mm Klsdpfx Aeyx Hx Domper Wheel Dimensions: 660x 75mm Work Head Speeds: (3) 20 – 160rpmrpm Wheel Head Speeds: 735rpm Table Swivels: Electrics: 415v, 3ph, 50 Cycles Motors Wheel Head: 20 HP 975rpm Work Head: 3HP 1120rpm Complete With: 2 No 2 Point Open Steadies Complete Tailstock Mounted Wheel Dressing Attachment Coolant Approximate Dimensions: 6,750 x 2000 x 1800mm Approximate Weight: 9,000kg

Condition: used, Model: D Serial No: 20829 Capacities: Maximum Swing Over Bed: 508mm Maximum Distance Between Centres: 4572mm Wheel Dimensions: 660x 75mm Work Head Speeds: (8) 22 – 129rpm Wheel Head Speeds: 735rpm Electrics: 415v, 3ph, 50 Cycles Motors Wheel Head: 20 HP 960rpm Work Head: 4HP 1440rpm Table Motor: 3HP 950rpm Complete With: 4 No 2 Point Open Steadies Complete Kljdpfjyx Hw Tsx Ampjr 3 No 2 Point Steadies Incomplete Table Mounted Wheel Dressing Attachment Coolant Approximate Dimensions: 13,000 x 2500 x 1800mm Approximate Weight: 19,000kg

Condition: used, Year of construction: 2004, Lot consists of: (1) CNC Horizontal Double-Disc Surface Grinder Technical Details: grinding wheel diameter x width 762 x 220mm, MARPOSS E3 in-process measuring system, CNC FANUC 210i-MB, 400V 50Hz 97kW, weight approx. 13 tons Kedpfx Ameym Tuaepjlr

Condition: excellent (used), Year of construction: 1998, Erwin Junker BUAJ BN29C CNC Universal Cylindrical Grinder Excellent condition Can be viewed underpower and demonstrating if you wish to visit. Year 1998 Fanuc series 35i CNC Control Weight 2800kgs Dimensions approx 3000mm x 1850mm x 1800mm Specification - Kodpfxeyvupxo Ampjlr Distance between centres - 800mm Centre table clearance 150mm Work piece weight between centres, max 120kg Machine working capacity IT4 ISO Wheelhead Grinding wheel, max diameter - 400mm Grinding wheel, max, width - 63mm Grinding wheel, clamping diameter - 127mm Motor power - 5.5kW Grinding wheel, max. peripheral speed - 45m/s Wheel head, path of adjustment - 300mm Wheel head, adjustment angle - +45°/-15° Workhead Spindle taper - MK5 Spindle, stepless speed control - 23-291 or 56- 700rpm Work head, adjustment angle - 90° Tailstock Taper - MK4 Tailstock barrel, stroke 30mm Taper ratio, fine adjustment +/-0.15mm Longitudinal feed Table travel 756mm Table, working travel speed 0÷7.5m/min Top table, swiveling +/8°30

Condition: good (used), Year of construction: 1984, Used TOS KAMENICEK model BUC63A x 3000 Universal cylindrical grinding machine. YEAR OF MANUFACTURE: 1984. MACHINE FORMERLY INSTALLED AT ROLLS ROYCE PLC IN DERBY UK. IMMEDIATELY FOR SALE AND NOW LOCATED IN BELGUIM WHERE IT CAN BE INSPECTED. SPECIFICATION Max Swing 630 mm Kjdpfoh U Rznox Ampelr Distance between centres 3000 mm Workhead swivel – towards wheelhead only 90 deg. mm Work spindle bored taper No. 6 M.T. Length of stroke of tailstock barrel 70 mm Tailstock barrel taper No. 6 M.T. Spindle nose clamping Din 55021 Swivelling of wheelhead + 30 deg – 10 deg Length of adjustment by re-circulating ball screw 290 mm Additional length of adjustment 250 mm Length of rapid feed 90 mm Length of infeed setting per each rev. of handwheel, measured on work diameter 0.5 mm Grinding wheel dia. X width X bore 750 x 80 x 305 mm Min. dia. of worn grinding wheel 570 mm Max. face width of grinding wheel 125 mm Rate of table traverse – steplessly variable 0.5-0.6 m/min Table traverse per 1 rev of handwheel 8 mm Swivelling of table +/- 5 deg. Max. permissible weight of work between centres 2500 kg Max. permissible weight of workpiece in chuck with overhang. (including weight of chuck) 150 kg Wheel spindle speeds (2) 840,970 rpm Grinding wheel surface speed 33 m/sec Work spindle speeds – int. var. in 2 ranges 8-50, 50-315 rpm Drive – total power required rated 31 kva Output of workhead motor 3 kw Output of wheelhead motor Electrics 15 kw 415V ,3Ph,50Hz Equipped with:- Additional wheel flanges, coolant system with clarifier and splash guards. FEATURES AND EQUIPMENT – Swivel Round Internal Grinding Attachment

Condition: ready for operation (used), Year of construction: 2000, functionality: fully functional, REFORM AR 101/61 Blade grinding machine available immediately. 8100mm grinding length Please contact us for more information. Kedpfxeygvluj Ampelr

Condition: excellent (used), Year of construction: 2015, functionality: fully functional, Technical details max. wheel diameter 330 mm gear width 175 mm max. module 6,0 min. module 0,8 centre distance 162 - 556 mm shifting 100 mm number of teeth 6 - 600 max.helical angle 45° deg. pressure angle 14° - 30° deg. grinding worm dia. max. 350 mm width of grinding worm 84/104 mm number of starts max. 5 workpiece weight max. 60 kg total power requirement 23 kVA weight of the machine ca. 6,7 t Additional information The machine is in excellent condition and has been used maximum in 1-shift operation. Generating and profil grinding. In July 2023, the machine was fitted with a new PC (PC APC910 1.4GHz; 2x2048MB RAM) and received a software update for profile grinding. Kodpfx Asy Ed S Usmpjlr Working hours (dated 09. April 2026): Working hours since software update: 12,689 h Working hours grinding/profiling: 1,976 / 134 h The machine was overhauled in July and October 2023: - Replacement of the X, Y, U and V ball screws, guides for the U and V axes, etc. Minimum workpiece root diameter: 10 mm Maximum workpiece tip diameter: 330 mm Maximum grinding stroke: 175 mm Maximum tooth width: 175 mm Maximum workpiece weight: 60 kg Center distances: 162 to 556 mm Grinding worm dimensions: Maximum outer diameter: 350 mm Minimum root diameter: 250 mm Width: 84/104 mm Maximum module (with limitations): 6.0 mm Number of threads: up to 5 Maximum usable width (shift travel): 100 mm Tooth design: Minimum number of teeth: 6 Maximum number of teeth: 600 Module with automatic centering: min./max. 0.8/6.0 mm Pressure angle: min./max. 14/30 deg. Maximum helix angle left and right: 45 deg. Grinding screw speeds: Grinding: 0 - 3500 rpm Profiling: 0 - 150 rpm Setup (special operating mode): max. 50 rpm Workpiece speed with gearbox: max. 400 rpm Workpiece speed with direct drive: max. 750 rpm Maximum shift travel: 100 mm Total connected load: 23 kVA Machine weight: 6.7 t

Condition: as good as new (ex-display), Year of construction: 2026, 5222454 LIBRA 45/2 RTC 135 Wide Belt Sander 5257433 "Z" Designation for RTC 135 5257452 Vacuum table with electric fan 3 kW 5257453 Oscillating belt air-blast device for 5257454 Oscillating belt air-blast device for 5257462 Reinforced motor 15 kW (20 HP) 5257485 Roller table at infeed and outfeed for 5257499 Grooved rubber pressure roller, 2nd position 5257500 Grooved rubber pressure roller, 3rd position 5257504 Infinitely variable conveyor feed with inverter 5257605 Door with inspection window 5257606 LED lamp for internal illumination TECHNICAL DATA Dimensions and Weights Length (product) approx. 1800 mm Width/depth (product) approx. 2000 mm Height (product) approx. 2070 mm Extraction Connection Number of extraction ports: 2 Extraction port diameter: 200 mm Electrical Data Feed motor power: 0.8 kW Connection voltage: 400 V Mains frequency: 50 Hz Height adjustment motor power: 0.25 kW Output power (motor power): 11 kW Sanding Unit Sanding belt length: 2150 mm Sanding belt width: 1370 mm Max. sanding width: 1350 mm Feed Unit Feed speed: 4.5 / 9 m/min Kedpfxey Ehiwe Ampelr Workpiece Min. workpiece height: 4 mm Max. workpiece height: 170 mm Product Information EU 2023/2854 Type of generated data: usage data Format of generated data: common, machine-readable formats, e.g., JSON Data volume: up to 5 MB Continuous real-time data generation: yes Data storage location: on the device and a remote server Data access: on the device and via physical and wireless interfaces Location: ex stock 54634 Bitburg - immediately available -

Condition: excellent (used), Year of construction: 2018, functionality: fully functional, grinding length: 500 mm, grinding width: 250 mm, total height: 1,800 mm, total length: 2,250 mm, total width: 1,400 mm, feed rate X-axis: 25 m/min, grinding wheel diameter: 205 mm, table length: 500 mm, type of input current: three-phase, table width: 250 mm, grinding wheel width: 19 mm, spindle speed (max.): 2,900 rpm, overall weight: 1,350 kg, grinding spindle motor power: 1,500 W, rotational speed (max.): 2,900 rpm, grinding spindle speed: 2,900 rpm, power: 1.5 kW (2.04 HP), grinding wheel speed: 2,900 rpm, input voltage: 400 V, disc diameter: 205 mm, Metallkraft FSM 2550 Surface Grinder Machine Type: Surface Grinder with NC Controlled Vertical Feed Year: 2018 Control: NC Control Condition: Very Good Includes NC Controlled Vertical Feed Table Enclosure Guard Electro-Magnetic Chuck Klodsv Iq Shjpfx Amper Wheel Dresser Coolant Equipment Halogen Light DRO Auto-Lube Technical Specifications Grinding Wheel Diameter: 180 to 205mm Grinding Wheel Width: 19 to 13mm Grinding Wheel Bore: 31.75mm Spindle Speed: 2900rpm Table Dimensions: 500 x 250mm X Axis Travel Speed: 5-25m/min Drive Motor Power: 1.5kW Electrical Connection: 400V/3Phase/50Hz Machine Dimensions: 2250x1400x1800mm Machine Weight: 1350kg Notes: *Specifications are given in good faith but not guaranteed*

Condition: not inspected (used), Year of construction: 1970, functionality: unexamined, machine/vehicle number: 5206, grinding wheel diameter: 240 mm, table length: 450 mm, table width: 250 mm, power: 6.08 kW (8.27 HP), input voltage: 380 V, No reserve price – guaranteed sale to the highest bidder! Bidding obligates the buyer to collect the item within the period from 23.06.2026 to 26.06.2026! TECHNICAL DETAILS Magnet dimensions: 450 x 250 mm Grinding wheel diameter: 240 mm MACHINE DETAILS Operating voltage: 380 V Connection: 6.08 kW Dimensions & Weight Dimensions (L x W x H): 2,500 x 1,500 x 2,000 mm Machine weight: 1,000 kg EQUIPMENT Kledpfsy D Tvtox Ampor Side table Suitable accessories Magnets Three-jaw chuck Vice (jaw width: 60 mm) External reference: 21

Condition: not inspected (used), functionality: unexamined, grinding wheel diameter: 100 mm, overall weight: 100 kg, total height: 1,500 mm, total length: 600 mm, total width: 500 mm, No reserve price – guaranteed sale to the highest bidder! Placing a bid obligates timely collection between 23/06/2026 and 26/06/2026! TECHNICAL DETAILS Grinding wheel diameter: 100 mm MACHINE DETAILS Dimensions & Weight Dimensions (L x W x H): 600 x 500 x 1,500 mm Weight: 100 kg EQUIPMENT Klsdsy D Tfnepfx Ampsr Matching drawer cabinet with additional grinding wheels and drill bits External reference: 24

Condition: not inspected (used), Year of construction: 1994, functionality: unexamined, machine/vehicle number: 4464, total height: 1,300 mm, overall weight: 300 kg, total length: 1,600 mm, total width: 1,000 mm, No minimum price – guaranteed sale to the highest bidder! Submitting a bid obligates you to collect within the period from 23/06/2026 to 26/06/2026! TECHNICAL DETAILS Drum diameter: 700 mm MACHINE DETAILS Dimensions & Weight Dimensions (L x W x H): 1,600 x 1,000 x 1,300 mm Weight: 300 kg Kledpfey D R Dzox Ampsr External reference: 46

Condition: not inspected (used), Year of construction: 2001, functionality: unexamined, machine/vehicle number: 200708, total height: 1,700 mm, overall weight: 300 kg, total length: 1,600 mm, total width: 1,000 mm, No reserve price – guaranteed sale to the highest bidder! Placing a bid obligates timely collection between 23.06.2026 and 26.06.2026! TECHNICAL DETAILS Drum diameter: 700 mm MACHINE DETAILS Dimensions & Weight Dimensions (L x W x H): 1,600 x 1,000 x 1,700 mm Weight: 300 kg External reference: 47 Kledpfxjy D R Aqj Ampor

Condition: not inspected (used), Year of construction: 1985, functionality: unexamined, machine/vehicle number: 776, total height: 1,300 mm, overall weight: 300 kg, total length: 1,600 mm, total width: 1,000 mm, No minimum price – guaranteed sale to the highest bidder! Submitting a bid obligates you to collect the item within the specified timeframe of 23.06.2026 to 26.06.2026! TECHNICAL DETAILS Drum diameter: 500 mm MACHINE DETAILS Operating voltage: 380 V Frequency: 50 Hz Rated current: 6.6 A Connected load: 2.6 kW Dimensions & Weight Dimensions (L x W x H): 1,600 x 1,000 x 1,300 mm Weight: 300 kg Klsdpfx Aoy D Rzaempor External reference: 48

Condition: excellent (used), Year of construction: 1990, Max. Grinding Area: 650 x 370 mm Longitudinal Table Movement, hydraulic: 650 mm Longitudinal Table Movement, manual: 700 mm Cross Table Movement, hydraulic: 330 mm Cross Table Movement, manual: 370 mm Grinding Spindle Speed: 1450 rpm Table Speed: 5 - 25 m/min Cross Feed: 1.1 mm/min Grinding Wheel Dimensions: 355 x 50 x 127 mm Machine Dimensions (L x W x H): approx. 2700 x 1850 x 2050 mm Weight: approx. 2100 kg Accessories / Special Features: • Automatic vertical feed • As-new safety doors • Electromagnetic chuck 600 x 300 mm • Coolant system • Separate hydraulic unit • Grinding wheel with flange • Control panel on swing arm • Manual dressing device with diamond Kedjy D Ad Hepfx Ampelr Siegfried Volz Machine Tools Rüschebrinkstr. 151-153 DE - 44143 Dortmund - Wambel / Germany

Condition: used, grinding length 4000 mm grinding width 1450 mm workpiece height 1250 mm control Siemens 840 D workpiece weight 11000 kg column daylight 1460 mm table surface area 4000 x 1250 mm table feed 1 - 45 m/min cross rail - adjustment 1250 mm total power requirement 40 kW dimensions of the machine ca. 12,3 x 6 x 4,8 m Equipment/Accessories: - 1 universal grinding support, 7.5 kW Swivel range grinding spindle +/- 110° grinding disc dimensions Ø 500 x 60 mm Vertical adjustment 350 mm with puller - 1 peripheral grinding support, 22.5 kW Grinding wheel dimension Ø 600 x 100 mm Vertical adjustment 150 mm with puller - with 6 magnetic plates arranged on the table - seperate clamping table - various grinding wheels and flanges - Technical documentation Klodpfx Amjy A Tacopjr

Condition: not inspected (used), Year of construction: 2002, functionality: unexamined, machine/vehicle number: 23220702, grinding wheel diameter: 300 mm, table length: 820 mm, table width: 350 mm, overall weight: 3,500 kg, controller model: SIEMENS SINUMERIK, No minimum price – guaranteed sale to the highest bidder! Bidding obligates the buyer to collect the machine within the specified period between 04.05.26 and 07.05.26. TECHNICAL DETAILS Grinding area: 600 x 350 x 375 mm Max. grinding wheel diameter: 300 mm Table dimensions: 820 x 350 mm Magnet dimensions: 600 x 350 mm MACHINE DETAILS Kljdsyr Nqnjpfx Ampjr Control system: SIEMENS SINUMERIK Operating voltage: 3 x 400 V Frequency: 50 Hz Rated current: 35 A Connected load: 7 kW Dimensions & Weight Dimensions (L x W x H): 4,000 x 2,400 x 2,300 mm Weight: 3,500 kg EQUIPMENT Magnetic chuck MPM balancing device External reference: 61

Condition: used, Year of construction: 2009, grinding diameter - internal max. 600 mm grinding diameter - cylindrical max. 800 mm control Siemens Sinumerik 840 D internal grinding depth max. 800 mm External grinding length max. 600 mm turning speed range - stepless 1-795 U/min workpiece length max. 800 mm Workpiece spindle unit (U/B1/L adjustment): - Travel (U axis): 300 mm - Swivel angle (B1 axis): -0.5°/+12° - Drive power of the workpiece spindle: 8.5 kW - Speed range (infinitely variable): 1-795 rpm - Setup speed (tapping): 10 rpm - Spindle head size A 8 according to DIN 55026 - Through bore 58.5 mm - Workpiece diameter max. 830 mm - Workpiece length (clamped in flight) max. 800 mm - Workpiece length (clamped between centers) max. 800 mm - Load capacity at spindle head max. 6100 N Internal grinding device (Z1/X1/B2): - Travel (Z1 axis): 1100 mm - Travel (X1 axis): 150 mm - Swivel angle (B2 axis): 270° - Manual longitudinal adjustment of internal grinding axis on table: 780 mm - Drive power of internal grinding spindles (infinitely variable) Belt-driven grinding spindles: 7.5 kW - Mounting bore grinding block (diameter): 100 mm / 125 mm - Mounting length grinding block: 220 mm - Grinding diameter: max. 600 mm - Grinding depth: max. 800 mm External and surface grinding device (Z2/X2): - Travel (Z2 axis): 800 mm Kodpswp S Tnsfx Ampelr - Travel (X2 axis): 470 mm - Swivel angle (B2 axis): 270° - Drive power of external grinding spindles: 7.5 kW - Mounting bore of grinding block: Ø 140 mm - Grinding diameter: max. 800 mm - Grinding length max. 600 mm - Grinding wheel dimensions: max. Ø 450 x 50 x Ø 127 mm Equipment/accessories: - Various grinding spindles - Various flanges/grinding wheel holders - Various clamping jaws - Coolant system - Oil mist filter - Cooler - Technical documentation

Condition: used, Year of construction: 2001, grinding length 4200 mm grinding width 1300 mm workpiece height 550 mm Control Siemens 840D passage width 1300 mm electro-magnetic table 4200 x 1300 mm grinding height 550 mm grinding motor 306 kW grinding motor turning speeds up to 370 U/min grinding motor feed, infinitely variable 0,5-35 m/min coolant flow rate 2000 l/min weight of the machine ca. 50 t dimensions of the machine ca. 11,21 x 5,25 x 3,85 m Equipment / Accessories: - segment head - diameter 1400 mm - for segment dimensions 120/106 x 41 x 250 mm - number of segments: 1 set = 26 pieces Klodpjthumuefx Ampsr - grinding motor adjustment - in steps: 0,002 - 1 mm - continuous: up to 5 mm/min stepless