Used Leadscrew/Feed Rod Lathe 2012 for sale (19,460)

Condition: good (used), Year of construction: 2012, functionality: fully functional, Weiler Praktikant VC precision lathe Manufacturer: Weiler Type: Weiler Praktikant VC precision lathe Year of manufacture: 2008 Condition: used, very good, serviced and inspected with inspection protocol according to factory specifications Technical details Turning diameter: 250 mm Turning length: 650 mm Center height: 160 mm Swing diameter over bed slide: 320 mm Max. swing diameter over cross slide: 190 mm Main spindle: Speed range – main spindle: 30 – 4,000 rpm Power output – main spindle: 10 / 6.0 kW Number of gear stages: 1 Spindle head: 5 / DIN 55027 Spindle diameter in front bearing: 70 mm Spindle bore: 40 mm Usable bar diameter: 40 mm Tool holder: System: MultiFix B Turning tool shank cross-section: 20 x 20 Tailstock: Quill travel: 85 mm Quill diameter: 40 mm Tailstock taper: MK 3 Feeds: Number of feeds: 24 Longitudinal feed: 0.02 – 0.63 mm/rev Cross feed: 0.006 – 0.2 mm/rev Thread cutting: Metric: 0.25 – 8 mm Inches: 80-2 1/” Module: 0.25 – 4 mm Travel distances: Cross slide travel: 150 mm Top slide travel: 110 mm Swivel movement: 180 ° Total power requirement: 15 kVA Machine weight: approx. 1.0 t Space requirements: approx. 2.5 x 2.0 x 2.0 m Scope of delivery: – Weiler Praktikant VC precision lathe – Machine lamp – Documentation – Three-jaw chuck – Tailstock – Multifix tool holder Gjdsyucd Tepfx Amuoit – 8x machine feet – Original tool set

Condition: ready for operation (used), DROOP & REIN SZ 100 / Keyway Broaching Machine for Lubrication Grooves - Maximum machinable diameter: 140 mm - Spindle bore: 40 mm - Groove length per stroke: 100 mm - Distance between chuck and tailstock center: 350 mm - 3 working speeds - Electric chuck guard Gijdpjyl R Etofx Amujt - Good / fully operational condition Dimensions: LxWxH 0.9x0.6x1.5 meters / Weight: 300 kg Subject to errors and omissions

Condition: ready for operation (used), L & Z Lathe / WEILER CONDOR VS 2 with new 3-axis digital readout from training workshop - 3-axis digital readout "NEW" - Center height: 165 mm - Swing diameter over bed: 330 mm - Center distance: 800 mm - Speed range: 28 - 2800 rpm - Automatic longitudinal / cross feeds - Spindle bore - Tailstock with center - Collets / quick-clamping device incl. 25 collets - 3-jaw chuck Röhm 200 mm with reversible jaws - Multifix / new with insert - Work light - Emergency stop - Bed stop - Machine feet - Documentation Gsdoy Ral Ispfx Amusit Dimensions: LxWxH 2x0.8x1.6 meters / Weight 900 kg Subject to errors and input mistakes.

Condition: ready for operation (used), L&Z Lathe WEILER LZ 330 incl. new 3-axis digital readout (from educational facility) - "NEW" 3-axis digital readout - Center height 165 mm - Swing over bed 330 mm - Turning length 800 mm - Spindle speed range (gearbox) 25–2800 rpm Godpey Id Uhjfx Amuoit - Automatic longitudinal/cross feeds - New Multifix toolpost with holders - Three-jaw chuck - Collet system with 20 collets - Original copy attachment - Various accessories - Documentation Dimensions (LxWxH): 1.8x0.7x1.6 meters / Weight: 800 kg Errors and omissions excepted.

Condition: ready for operation (used), WEILER Condor VS 2 with new 3-axis digital readout from university (test laboratory) - New 3-axis digital readout - Guideways in "as new" condition - Centre height: 165 mm - Swing over bed: 330 mm - Distance between centres: 800 mm - Speed range: 28-2800 rpm - Automatic longitudinal / cross feeds - Spindle bore: 40 mm - Thread cutting / metric / imperial etc. - Collets / quick-clamping device incl. collets - 4-jaw chuck - Röhm - Face plate - Multifix toolpost with holders - Emergency stop - Chuck guard - Documentation Gijdpfxjy Efqrs Amuet Dimensions: LxWxH 2x0.8x1.6 meters / Weight: 900 kg Subject to errors and input mistakes.

Condition: as good as new (ex-display), WEILER COMMODOR 180 GSD / New Machine – Exhibition Model - Available from stock - Exhibition machine / NEW – UNUSED - 3-axis digital readout - CE marking - Center height 180 mm - Swing over bed 380 mm - Swing over cross slide 215 mm - Distance between centers 1000 mm - Bar capacity 56 mm - Speeds / gearbox: 25 – 2000 rpm - Automatic longitudinal / cross feeds - Thread cutting inch / metric etc. - Chuck guard - Tailstock / quill taper MK 4 - Quill stroke 150 mm Giedpfx Ajy Dc Tzsmuot - Coolant system - Multifix quick-change toolpost with insert - 3-jaw chuck 200 mm - Work lamp - Chip guard (rear) - Documentation Dimensions: LxWxH 2.6x1.6x1.7 meters / Weight 2000 kg Errors and omissions excepted

Condition: used, L + Z Lathe WEILER Type Condor 81 A Mach. No. 36553 Year of manufacture approx. 1985 Centre distance 750 mm Swing over bed 330 mm Centre height over bed 165 mm Swing over cross slide 180 mm Centre height over cross slide 90 mm Spindle bore 40 mm Chuck mounting: Short taper DIN 55027 size 5 Tailstock quill taper MK 3 Gsdpfok S Ht Ajx Amusit Quill travel 110 mm Spindle speed 45 - 2800 rpm, 16 steps Drive power 3 kW Power supply 400 Volt, 50 Hz - Spindle speed through 16 gear steps - 3-jaw chuck Ø 160 mm RÖHM with hard and soft jaws - Multifix quick-change tool post size B with 3 holders - Automatic longitudinal and cross feed - Electro-mechanical spindle brake - Emergency stop - Coolant tank with pump integrated in the machine base, without feed hose to working area - Hinged chuck guard - Splash guard - 1 live center - Electric diagram and operating manual Space requirements L x W x H 1850 x 950 x 1400 mm Weight 1100 kg Good condition

Condition: ready for operation (used), EXCELLO DLZ 500 LZ - 3 Meter Turning Length / Lead and Feed Screw Lathe - Centre height: 250 mm - Centre distance: 3000 mm - Swing diameter over bed: 500 mm Giedpoyntkqjfx Amuot - Swing diameter over cross-slide: 310 mm - Spindle bore: 65 mm - Spindle speeds: 28 - 1400 rpm - Automatic longitudinal / cross feeds - Thread cutting / metric etc. - 3-jaw chuck 250 mm - 4-jaw chuck 250 mm - Multifix toolholder with inserts - Steady rest - Tool cabinet - Documentation Dimensions (LxWxH): 5.5x1.4x1.6 meters / Weight: 3800 kg Subject to errors and input mistakes

Condition: ready for operation (used), Leadscrew & feedscrew lathe GEMA LZ 200 from educational institution - Three-axis digital readout "NEW" Gisdjyh Hrxepfx Amujt - Guides in perfect condition - Center height: 200 mm - Distance between centers: 1000 mm - Spindle bore: 54 mm - Swing over bed: 400 mm - Swing over cross slide: 200 mm - Speed range: 36 – 2200 rpm - Automatic longitudinal / cross feeds - Tailstock MK4 – quill stroke 200 mm - Three-jaw chuck 250 mm - Electric chuck guard - Multifix toolpost with inserts - Coolant system - Work light - Chip tray - Machine feet Dimensions: LxWxH 2x1.2x1.6 meters / Weight: 1800 kg Subject to errors and input mistakes.

Condition: good (used), Year of construction: 1972, functionality: fully functional, machine/vehicle number: 70.1025.002302, turning diameter over cross slide: 280 mm, spindle bore: 52 mm, turning diameter: 485 mm, center height: 232 mm, center width: 360 mm, turning length: 1,600 mm, total length: 3,350 mm, total width: 1,100 mm, total height: 1,400 mm, spindle speed (max.): 2,240 rpm, spindle speed (min.): 11 rpm, overall weight: 2,500 kg, workpiece weight (max.): 500 kg, Offered for sale is a VDF 48S Boehringer lead and feed screw lathe with accessories in good condition. Manufacturer: VDF Boehringer Göppingen Model: 48S Machine no.: 70.1025.002302 Giodpfx Aex Nqklsmust Year of manufacture: approx. 1972 Centre height: 232 mm Centre distance: 1600 mm Swing over bed: 485 mm Swing over cross slide: 280 mm Spindle bore: 52 mm Spindle speeds: 11.2 - 2240 rpm Total power requirement: 7.5 kW Machine dimensions (L x W x H): approx. 3.35 x 1.10 x 1.40 m Weight: approx. 2,500 kg

Condition: good (used), Year of construction: 1996, functionality: unexamined, turning diameter over cross slide: 700 mm, turning length: 2,000 mm, turning diameter: 700 mm, spindle bore: 106 mm, spindle speed (max.): 1,800 rpm, For sale: Gsdpjy R Dyvsfx Amusit 1 unit used lead- and feed-screw lathe Manufacturer: Weiler Werkzeugmaschinen Model: E70 Year of manufacture: 1996 Technical data: Centre height: approx. 355 mm Swing over bed: approx. 700 mm Swing over cross slide: approx. 420–450 mm Distance between centres: 2000 mm Spindle bore: 106 mm Including the illustrated documentation, chip conveyor and Sauter tool holder. The machine can be inspected at our warehouse in 09599 Freiberg.

Condition: not inspected (used), Year of construction: 1988, functionality: unexamined, machine/vehicle number: 0278, turning diameter over cross slide: 240 mm, turning diameter over bed slide: 400 mm, center height: 120 mm, spindle speed (max.): 2,000 rpm, bar passage: 53 mm, No reserve price – guaranteed sale to the highest bidder! Bidding commits you to timely collection between 23.06.2026 and 26.06.2026! TECHNICAL DETAILS Swing diameter over bed: 400 mm Swing diameter over cross-slide: 240 mm Spindle speed: 45 - 2,000 rpm Spindle bore: 53 mm Centre distance: 1,000 mm Centre height over bed: 200 mm Centre height over cross-slide: 120 mm MACHINE DETAILS Giodpey D Sdisfx Amust Dimensions & Weight Dimensions (L x W x H): 2,400 x 900 x 1,600 mm Machine weight: 1,500 kg EQUIPMENT Tailstock Multifix quick-change toolpost Three-jaw chuck (diameter: 200 mm) + additional three-jaw chuck Toolholder Turning tools Indexable inserts External reference: 11

Condition: used, functionality: fully functional, Manufacturer: Haaf (formerly Gema) Type: LZ 185 Swing diameter over bed: 365 mm, over cross slide: 225 mm Turning length: 750 mm Centre height: 185 mm Spindle bore: 40 mm Spindle flange: KK5 (DIN 55022) Spindle taper: MK5 Speed range: 20 – 1,600 rpm Heidenhain VRZ 773 B digital readout on 2 axes (scales on the cross and longitudinal slides) Dimensions: 1,900 x 900 x 1,700 mm Additional equipment: - Spindle brake with foot pedal - Adjustable stop on the cross slide (disengagement of feed) - Splash guard Accessories: - Operating manual - Multifix B holder with 2 inserts - Coolant pump integrated in machine base (no coolant hose connected) - Röhm 3-jaw chuck 200 mm with hard and soft jaws Weight: approx. 950 kg Condition: Used The machine runs smoothly and can be inspected under power. All information is provided without guarantee; errors excepted; all dimensions are approximate. Offer is subject to change without notice. The machine can be inspected by appointment. Giodjw Svtcepfx Amust Changes and errors in technical data, information, and prices as well as prior sale are reserved! All prices are net plus VAT. Payment in advance, including any shipping costs, to be made within 14 days of contract conclusion. If the full purchase price is not paid within this period, the seller reserves the right to cancel the sales contract. Sale is only to commercial buyers within the meaning of § 14 BGB. The machine is sold with exclusion of warranty for material defects. This exclusion does not apply to claims for damages arising from liability for material defects which are based on gross negligence or wilful misconduct by the seller or his agents, or in the event of injury to life, limb or health. Any existing third-party warranty claims are assigned to the buyer. Please understand that I cannot assume any liability for compliance with any safety regulations that may be applicable to you or generally required concerning the machine and its components. Ensuring such compliance is the responsibility of the end user. All contracts concluded are subject exclusively to the law of the Federal Republic of Germany to the exclusion of the UN Sales Convention. Place of jurisdiction agreed as Mannheim.

Condition: ready for operation (used), Year of construction: 2005, L & Z Lathe / WEILER DA 210x1000 / With new 3-axis digital readout - Year of manufacture: 2005 - CE marking - Guideways in good condition - FULL TECHNICAL DATA SEE PHOTOS - Three-axis digital readout "NEW" Gjdpfx Aoy H Ikqomueit - Quick-change collet system incl. 79 collets (173E) - Multifix base holder with inserts - 3-jaw chuck - Electrical chuck guard - Additional sliding guard - Coolant system - Drill chuck / live center - Chip guard rear wall - Work light - Complete documentation Dimensions: LxWxH 2.8x1.2x1.8 meters / Weight 1600 kg Errors / input mistakes excepted.

Condition: ready for operation (used), Year of construction: 1997, Lead and feed screw lathe / WEILER CONDOR B incl. 3-axis digital readout / Heidenhain - Machine from educational facility Gisdpfx Amsy A Ey Ujuot - Center height: 165 mm - Swing over bed: 330 mm - Swing over cross slide: 185 mm - Turning length: approx. 800 mm - Spindle speeds: 22 - 2800 rpm - Automatic longitudinal / cross feeds - Thread cutting / metric, etc. - Bar capacity: 40 mm - Tailstock / quill taper: MT 3 - Electrical chuck guard - Multifix tool post with holders - 3-jaw chuck - Forkardt - Machine lamp - Chip guard at rear - Bed stop - Machine feet - Documentation Dimensions (LxWxH): 1.8 x 0.8 x 1.6 meters / Weight: 1100 kg Subject to errors and input mistakes.

Condition: excellent (used), Tacchi HD/1450 – 725 x 4000mm CNC Lathe (2012) Serial Number: 7264 Year: 2012 Control: Fanuc OiTD CNC Condition: Used – good working order Technical Specifications: Centre height: 725mm Swing over bed: 1450mm Swing over cross slide: 1000mm Distance between centres: 4000mm Main drive motor: 60 kW Maximum weight between centres (unsupported): 15,000 kg Spindle speed range: 1.9 – 560 rpm Features & Equipment: Gjdpfx Amjxc In Sjusit 2 x 3-point steady rests Handwheel Swarf conveyor 4-position hydraulic toolpost 4-jaw chuck Fanuc OiTD CNC control

Condition: good (used), NARDINI MS 125 E / Lead and Feed Screw Lathe - Center height over bed: 150 mm - Swing over cross slide: 140 mm - Distance between centers: 500 mm - Bar capacity: 34 mm - Spindle speeds: 50 - 2500 rpm - Automatic longitudinal/cross feeds - Thread cutting / metric / imperial, etc. - Tailstock: MT 3 - Quick-action collet chuck type 173E incl. 16 collets - Multifix toolpost with inserts - Change gears - Tool cabinet incl. various tools - Machine feet - Chip guard - Drill chuck & live center - Work lamp Giedpfx Amjyam Slouet - Documentation Dimensions: LxWxH: 1.6 x 0.7 x 1.6 meters / Weight: 1250 kg Errors and omissions excepted.

Condition: not inspected (used), functionality: unexamined, machine/vehicle number: 80011, turning diameter over bed slide: 260 mm, center height: 130 mm, turning length: 500 mm, spindle speed (max.): 3,135 rpm, overall weight: 500 kg, No reserve price – guaranteed sale to the highest bidder! Giodpfx Amjym Udpsuet Placing a bid obligates the buyer to collect the item within the specified periods: either between 11/05/2026 and 13/05/2026 or between 18/05/2026 and 21/05/2026. TECHNICAL DETAILS Turning length: 500 mm Swing over bed: 260 mm Swing over cross slide: 200 mm Centre height over bed: 130 mm Centre height over cross slide: 100 mm Spindle bore: 22 mm Spindle speed: 13 to 3,135 rpm MACHINE DETAILS Dimensions & Weight Dimensions (L x W x H): 1,500 x 700 x 1,500 mm Weight: 500 kg EQUIPMENT Tailstock Quick change tool post Collet chuck 8 additional tool holders External reference: Pieper - Lot 61

Condition: not inspected (used), functionality: unexamined, turning diameter: 340 mm, center height: 170 mm, spindle speed (max.): 2,000 rpm, overall weight: 1,200 kg, No minimum price – guaranteed sale to the highest bidder! Placing a bid obligates you to collect the item within the specified periods: either between 11.05.2026 and 13.05.2026 or between 18.05.2026 and 21.05.2026. TECHNICAL DETAILS Swing diameter over bed: 340 mm Swing diameter over cross slide: approx. 260 mm Center height over cross slide: 130 mm Center height over bed: 170 mm Center distance: 700 mm Spindle speed: 25 – 2,000 rpm Spindle bore: 48 mm MACHINE DETAILS Operating voltage: 380 V Frequency: 50 Hz Rated current: 12 A Connected load: 4.8 kW Dimensions & Weight Dimensions (L x W x H): 1,800 x 700 x 1,500 mm Weight: 1,200 kg EQUIPMENT Gedpfxeym N Nye Amusit Tailstock Multifix quick-change toolholder Quick-action chuck Including collets Various accessories External reference: Weitner

Condition: not inspected (used), functionality: unexamined, turning diameter: 360 mm, center height: 180 mm, overall weight: 1,000 kg, No minimum price – guaranteed sale to the highest bidder! Placing a bid obligates the buyer to collect the item within one of the following periods: either between 11.05.2026 and 13.05.2026 or between 18.05.2026 and 21.05.2026. TECHNICAL DETAILS Swing diameter over bed: approx. 360 mm Swing diameter over cross slide: 240 mm Center height over cross slide: 120 mm Center height over bed: approx. 180 mm Spindle bore: approx. 48 mm Center distance: approx. 700 mm MACHINE DETAILS Operating voltage: 380 V Frequency: 50 Hz Control voltage: 220 V Connected load: 4.8 kW Dimensions & Weight Dimensions (L x W x H): 1,800 x 900 x 1,600 mm Weight: 1,000 kg EQUIPMENT Tailstock Multifix quick-change tool post Quick-change chuck Various steadies Digital readout Giedpfxoym N D Ds Amuet External reference: Lot 18 / Ulmer

Condition: not inspected (used), functionality: unexamined, turning length: 3,000 mm, spindle speed (max.): 1,800 rpm, overall weight: 8,000 kg, three-jaw chuck diameter: 310 mm, No reserve price – guaranteed sale to the highest bidder! Bidding obligates the buyer to collect the machine within one of the specified periods: either between 11/05/2026 and 13/05/2026 or between 18/05/2026 and 21/05/2026. Gjdpfx Amoym Dcujusit TECHNICAL DETAILS Turning length: 3,000 mm Center height over bed: 300 mm Swing diameter over bed: 600 mm Center height over carriage: 200 mm Swing diameter over carriage: 400 mm Spindle speed: 9 to 1,800 rpm Spindle bore: 110 mm Three-jaw chuck diameter: 310 mm Steady rest diameter: 200 mm MACHINE DETAILS Dimensions & Weight Dimensions (L x W x H): 6,000 x 1,400 x 2,000 mm Weight: 8,000 kg EQUIPMENT Tailstock Multifix turning tool holder Three-jaw chuck Two-axis digital readout (SONY) Steady rest External Reference: Pieper – Lot 57

Condition: refurbished (used), Year of construction: 2025, functionality: fully functional, turning diameter: 630 mm, - Complete overhaul of the machine (description of work see below) - New electrical installation in CE-compliant version: chuck guard Ø 315 mm with limit switch, front chip guard on the carriage, rear movable guard, leadscrew cover - Accuracy certificate - Electrical installation inspection protocol - Delivery: immediately Key Features: - Simple and ergonomic operation - Hand scraping of critical machine parts – high machining precision - Long service life - Low operating costs - Low maintenance requirements - Capability for cutting various thread types with wide pitch range Technical Specifications: Working Area: Swing over bed: 630 mm Swing over carriage: 340 mm Swing in gap: 880 mm Effective gap length from spindle face: 300 mm Distance between centers: 2000 mm Center height above bed: 315 mm Bed width: 450 mm Spindle: Speed range: 10–1000 rpm Number of speed steps: 16 Spindle nose: Bayonet B8 Spindle bore: 71 mm Internal taper: Metric 80 Slides: Cross slide travel: 400 mm Compound slide travel: 180 mm Max. tool size: 40 x 25 mm Longitudinal feed range: 0.05 – 6.4 mm/rev Cross feed range: 0.025 – 3.2 mm/rev Rapid longitudinal feed: 3000 mm/min Rapid cross feed: 1500 mm/min Compound rest swiveling angle: ±90° Tailstock: Quill diameter: 90 mm Quill stroke: 240 mm Quill taper: Morse 5 Transverse offset: ±10 mm Thread Cutting: Metric threads (number/pitch): 29 / 0.5 – 40 mm Whitworth threads (number/pitch): 35 / 1–80 TPI Modular threads (number/pitch): 26 / 0.25–20 mm Diametral pitch threads (number/DP): 31 / 2–72 DP Drives: Total power input: 15 kVA Main drive motor: 11 kW Coolant pump: 0.1 kW Rapid traverse motor: 0.95 kW Gsdpfxsyf Dnuj Amujit Dimensions: Total length: 4000 mm Width: 1440 mm Height: 1100 mm Weight: 2940 kg Operating Data: Supply voltage: 3 x 400 V ±10% Frequency: 50 Hz ±2% Achievable machining accuracy: IT7 Spindle nose: Bayonet B8 Spindle bore: Ø 71 mm Square turret Electrical system for 3 x 400 V / 50 Hz, circuit breaker equipped Slide box controls on right side Gap for increasing swing over bed to 880 mm for 300 mm from spindle face Rapid traverse Tailstock Main drive 7.5 kW Swarf tray + coolant system LED machine lighting Supply line in armored hose Folding handle for X axis Folding handle for Z axis Color – RAL 7035-3 / 7016-3 / 6153 Set of change gears for thread cutting Shear pin, 3 pcs

Condition: as good as new (ex-display), Year of construction: 2025, functionality: fully functional, Leadscrew & feed shaft lathe DREHMA DA 410x1500 / New / Demonstration machine - CE marking - Digital readout - Swing over bed: 410 mm - Swing over cross slide: 225 mm - Swing in gap: 580 mm - Turning length: 1500 mm - Spindle bore: 52 mm - Speed range / gearbox: 45 - 1800 rpm - Automatic longitudinal / cross feeds - Thread cutting / metric / imperial etc. - Tailstock MT 4 - Centralized lubrication - Motor power: 3.5 kW - Fixed & travelling steady rests - Multifix toolpost with inserts - 3-jaw chuck 200 mm - 4-jaw chuck 250 mm - Faceplate - Chuck guard Gsdeymcv Hepfx Amueit - Coolant system - Work lamp - Live center & drill chuck - Machine feet - Documentation Dimensions LxWxH: 1.5 x 1 x 1.6 meters / Weight: 1850 kg Errors and omissions excepted.

Condition: good (used), Lead and feed screw lathe WEILER PRAKTIKANT 800 R Gsdpfex A Uktjx Amusit - Swing diameter over bed: 300 mm - Swing diameter over cross slide: 150 mm - Turning length: 800 mm - Spindle bore: 42 mm - Speed range: 40 - 2000 rpm - Automatic longitudinal / cross feeds - Thread cutting / metric / inch etc. - Tailstock Morse taper 3 - Three-jaw chuck - Chip guard rear wall + work light - Chip tray - Change gears - Tool cabinet - Documentation Dimensions: LxWxH 1.8x0.8x1.6 meters / Weight 750 kg Errors and input mistakes excepted

Condition: good (used), VOEST DA 360 – Lead and Feed Screw Lathe -Heidenhain digital readout -Center height over bed: 400 mm -Swing diameter over bed: 800 mm -Swing diameter over cross slide: 500 mm -Turning length: 1,000 mm -Spindle bore approx. 87 mm -Speed range: 14 – 1,000 rpm / 18 speeds -Automatic longitudinal and cross feeds -Automatic Z-axis infeed Gijdpsx Auldjfx Amuot -Tailstock Morse taper 5 -3-jaw wedge-type chuck 250 mm -Multifix base holder with insert -Work lamp -Machine feet -Documentation Dimensions: LxWxH 3x1.5x1.7 meters / Weight 3,500 kg Subject to errors or input mistakes.