Used Sip Jig Boring Machine - Vertical for sale (66,271)

Year of construction: 1985, condition: used, spindle diameter 110 mm x-travel 900 mm y-travel 600 mm z-axis 200 mm table length 1020 mm table width 860 mm taper MK 40 Table size, approx. 1,020 x 860 mm Max. weight of workpiece 800 kg Table travel, longitudinal, max. (X) 900 mm Boring head travel, cross, max. (Y) 600 mm Boring spindle stroke (Z) 200 mm Vertical travel of cross beam (W) 635 mm Vertical distance between table and boring spindle 15 - 850 mm Distance between columns 950 mm Spindle Ø 110 mm Spindle taper internal/external ISO 40 18 spindle speeds 10 - 2,500 rpm Laedet Hwyxopfx Am Tjc Milling feeds of table, infinitely variable 1 - 6,000 mm/min 4 milling feeds of boring head 30 - 180 mm/min 6 boring feeds 0.01 - 0.39 rpm Accuracy of all 3 axes when the machine was new 0.003 mm Quick feeds for table, boring head slide, and boring spindle, max. 6,000 mm/min Spindle drive 6.2 kW Weight, approx. 9,000 kg Total electrical load 15 kW - 380 V - 50 Hz Accessories / Special Features - BOSCH CNC Control, Model MICRO 8, in 3 axes, with monitor. Program input is either manual or via cassette, or via interface entry. - Digital display for Z Axis. - Separate switch cabinet. - Various tools. - Oil cooler for spindle lubrication.

Year of construction: 1986, condition: excellent (used), functionality: fully functional, Technical details spindle diameter 135 mm x-travel 1000 mm y-travel 700 mm z-travel 300 mm cross rail adjustment - vertical 780 mm distance between table/spindle 1000 mm table surface area 1100 x 842 mm distance between columns 1100 mm table load 1500 kg tool taper SK 45 spindle turning speed range 2400 U/min spindle drive 5,9 kW feed range 1 - 6000 mm/min weight of the machine ca. 10,6 t Additional information Retrofit / overhauling in May 2005 (with geometric measurement): - New Heidenhain iTNC-530 control - New electronics - New Siemens servomotors - Heidenhain glass scales - Revision of drilling spindle unit Laedpfx Aozabqvsm Toc (total costs 118,436.00 EUR) Equipment: Infrared measuring probe m&h 38.10-MINI Electron. Handwheel Various tool holders Transport dimensions: - Machine (LxWxH) 3500 x 2600 x 2750 mm - Control cabinet (LxWxH) 2300 x 600 x 2300 mm - Hydraulic (LxWxH) 800 x 600 x 1000 mm

Condition: like new (used), CNC vertical jig boring machine WMW MIKROMAT Travel X: 1120 mm Travel Y: 710 mm Spindle travel Z: 315 mm Travel W: 630 mm Numerical Command: CNC NUM 1060 Spindle: Ø 125 mm Cone: SA40 Rotation: from 36 to 2240 RPM Table size: 1400 x 900 mm Lsdpfxegy E Dpj Am Tjac Distance between colums: 1080 mm Maxi distance spindle nose/table: from 0 to 900 mm max Maxi eligible load on table: 1000 kg max Separate electrical panel Machine renewed in 2000 with CN NUM1060 Voltage: 380 V Dimensions (L x W x H): 4000 x 2460 x 3030 mm Weight: approx. 9 T

Condition: excellent (used), functionality: fully functional, travel distance X-axis: 400 mm, travel distance Y-axis: 250 mm, travel distance Z-axis: 450 mm, spindle speed (max.): 3,000 rpm, spindle speed (min.): 60 rpm, table length: 550 mm, table width: 320 mm, table load: 400 kg, spindle mount: MK 2, total height: 1,750 mm, drill spindle length: 130 mm, total length: 1,400 mm, total width: 1,400 mm, rotational speed (min.): 60 rpm, rotational speed (max.): 3,000 rpm, distance between stands: 600 mm, quill travel distance: 130 mm, quill stroke: 130 mm, space requirement width: 2,100 mm, spindle motor power: 550 W, workpiece weight (max.): 400 kg, overall weight: 1,600 kg, number of previous owners: 2, Equipment: rotational speed infinitely variable, HENRI HAUSER OP3 – Unique piece / excellent condition! (Bienne/Biel, Switzerland) This quality will never be produced again! Coordinate drilling machine/precision drilling machine with tool package in excellent, exceptional condition, second-hand (owned for 41 years). The coordinate drilling machine features the rare option of motorized table drive in the X and Y axes, along with potentiometers. This eliminates the tedious process of manually positioning each coordinate over longer distances using hand cranks. Furthermore, it has the rare thermal stabilization and expansion compensation system. This is achieved through 2 heaters that can and must be switched on separately before starting work and to maintain high accuracy and dimensional precision. This explains the factory-set high positioning accuracy of 0.002 mm with a resolution of 0.001 mm. What is truly unique is that the Hauser has two Heidenhain digital displays with a total of 4 glass scales with 1My resolution, including for the quill feed. This is a major advantage for precise drilling and surfacing in depth with Wohlhaupter, spindle tools, etc. With the aforementioned options and in this first-class condition, it is very rare and most likely no longer available. Those familiar with these machines, which are primarily used in the watch industry, gunsmithing/defense industry, precision engineering, material testing, and the optical industry, understand the value of these masterpieces of mechanical engineering. It is also ideally suited for engine construction/overhaul, technical universities and training, materials technology, special machine construction, etc. All documents, manuals, electrical wiring diagrams, etc. are, of course, available in their original form! Technical data: Table length 550 mm, table width = 320 mm, longitudinal travel X-axis = 400 mm, transverse travel Y-axis = 250 mm, vertical travel Z-axis = 400 mm Max. workpiece weight on the table = 400 kg, spindle mount MK 2, stroke of the drilling spindle (Z-axis) = 130 mm Distance table to spindle = 590 mm, spindle speeds continuously variable from 60 rpm to 3000 rpm Feeds: Drilling spindle slide: 2 steps from 0.03 mm/rev to 0.06 mm/rev Connection 50 Hz 3x 380 Volt, spindle motor 0.80 hp Machine dimensions: Length = 1200 mm, Width = 1150 mm, Height = 1650 mm Machine weight approx. 1500 kg. Shipping (direct transport without transshipment) within the EU is possible. Price net export within the EU. Lajdpfx Amey Sx Nho Toc Fair offers are welcome!

Condition: used, Technical details: z-travel: 400 mm range of revolution per miute: max. 3.000 / steples U/min feed continuous: keine Angaben quill stroke vertical: 100 mm spindle taper: MK2 Laodpfsv A S Efjx Am Tjc table surface area: 445 x 315 mm distance table - lower edge spindle: max. 520 mm table travel: längs: 250 mm table travel: quer: 330 mm table height over floor: 920 mm total power requirement: 1,6 kW weight of the machine ca.: 1500 kg machine dimensions LxWxH: 1,3 x 1,1 x 2,0 m Application: Milling and drilling slotted holes There is a precision dial gauge for depth display on the drill spindle head. 5x T-slots to DIN 650: a=10; h=18; b=18; c=8mm Features: Two-way digital ACU-RIDE display *

Condition: used, machine/vehicle number: 52 / 519, spindle diameter:90 mm x-travel:700 mm distance between columns:900 mm size of table:770 x 900 mm x-Travel:700 mm y-travel:500 mm z-travel:1100 mm feed range - table:15 - 280 mm/min rapid traverse Z-axis:530 m/min spindle bore diameter / taper:MT4 (Morse) mm spindle bore diameter:max. 230 mm spindle stroke - max.:170 mm spindle speeds low range:10 U/min spindle speed high range:2000 U/min vertical feeds of spindle head::0.02 - 0,2 mm/r feed steps:6 Main spindle capacity:3 kW total power requirement:4,2 kW weight of the machine ca.:4 t dimensions of the machine ca.:1,9 x 2,2 x 2,4 m Ledoh Ra Stjpfx Am Tsac Hauser (SIP) High Precision Co-ordinated Jig Boring Machine, Model - M5 Douple Column Design Boring machine Large table (900 x 770 mm) for bulky Objects. All Axis are equipped with Fine Dial for High Presion Boring. A Complete Accesseries and tools are Avilable with the machine ( Drill Bits, Drill Chucks, Multiple Boring heads, Boring Inserts and Bits, Small and large rotary index table for small and big loads).

Year of construction: 1953, condition: good (used), functionality: fully functional, machine/vehicle number: 46, Condition & Origin: We are offering a former toolmaking machine – a SIP Hydropik H-6 gauge drilling machine in excellent condition. The machine has been used very little and has been out of operation for approximately 2 years. It is immediately available for use in precision manufacturing, mold making, or repair work. Equipment & Features: Rotoptic rotary table (original, including transport crate) – for highly accurate swiveling and indexing operations All original documents (operating manual, wiring diagrams, test reports, etc.) are available Guide rails in very good condition – no discernible wear due to low operating time Machine from a controlled toolmaking environment, not mass production Ljdpfx Amozb A Tuo Tsac Technical specifications (briefly): Type: SIP Hydropik H-6 Year of manufacture: 1953 Total weight approx. 10 tons including rotary table Organization & Loading: The machine must be loaded on-site – we do not have our own forklift of suitable size. If desired, we can arrange for an external forklift for a flat-rate fee. If the machine is picked up by the buyer, the loading must be carried out by the buyer themselves. Inspection: Possible at any time by arrangement. The machine can be inspected and demonstrated while powered.

Condition: good (used), Jig boring mill, fine boring mill, plate boring mill, table boring mill, boring mill, milling machine, -Table dimensions: 700 x 405 mm -Travel paths: Z 330 mm/Y 410 mm/X 630 mm -Quick stroke: 155 mm -Recording: MK4 -Speeds: 31 - 1500 rpm Lsdjd Tk Stepfx Am Tsac -Dimensions: 1570/1800/H2600 mm -Weight: 2600 kg

Year of construction: 2012, condition: excellent (used), YASDA YBM Vi40 CNC jig boring machine / machining center machine in perfect condition incl. accessories (see photos) For the complete photo gallery: See attached PDF file (from page 4) TECHNICAL DATA Travels X-axis: 900 mm Y axis: 500 mm Z axis: 450 mm Distance from the table surface to the spindle tip: 100 to 550 °. Rotary table diameter: 400 mm Pallet loading capacity: 200 kg Table surface configuration: 44-M12 thread C axis: 360 ° Table tilt axis movement range (B axis): +- 110 ° Distance between center of tilt axis and rotary table: 0 mm Rotary axis (C axis): 100 rpm Max. rotation of the inclination axis: 20 rpm Motor for rotary axis: 4,2 kW Motor for inclination axis: 4,5 kW Spindle type: SA40-24`000-18,5 Spindle speed range: 100 - 24`000 rpm Spindle speed range programming: Programming by direct input of a 5-digit S-command Number of spindle speed ranges: 1 Type of spindle conical bore: HSK-63A Inner diameter of spindle bearing: 65 mm diameter Rapid traverse Speed: X,Y,Z axis: 20`000 rpm Feed rate: X,Y,Z axis: Max. 5000 rpm Laodepqx H Tspfx Am Toc C-axis: 100 rpm B axis: 20 rpm Smallest input increment: 0.0001 mm/deg Automatic tool changer: 60 tools Selection method: Any selection Tool shank type: HSK-63 A Max. tool diameter Tool diameter: 100 mm Max. tool diameter Tool diameter at full setting: 70 mm Max. Tool length: 250 mm Max. Tool weight: 7 kg Tool balance weight: within G2.5 Machine dimensions: 3220 x 3885 x 3515 mm Machine weight: 15`000 kg No responsibility is taken for the accuracy, completeness and timeliness of the information.

Condition: used, Year of construction: 1980, spindle diameter 135 mm x-travel 950 mm distance between columns 1100 mm y-travel 700 mm cross rail adjustment - vertical 780 mm quill travel 300 mm max. distance between table and spindle-nose 1000 mm table surface area 1100x842 mm table load 1500 kg Laodpfey Ehwhox Am Tjc speeds 40-2000 U/min adjustment speed 5-1500 mm/min electrics - voltage/frequency 380/50 V/Hz total power requirement 8 kW weight of the machine ca. 9,5 t dimensions of the machine ca. 3,3x2,34x2,8 m total power requirement 8 kW weight of the machine ca. 9,5 t dimensions of the machine ca. 3,3x2,34x2,8 m

Condition: ready for operation (used), Year of construction: 1994, functionality: fully functional, A used CNC jig boring machine SIP 640 FANUC control Ljdpfx Amoy R Nnls Teac Includes 80 tool holders Disassembly and loading are the responsibility of the buyer.

Condition: used, spindle diameter 90 mm x-travel 700 mm y-travel 500 mm Control Heidenhain bore capacity in steel 40 mm spindle taper MK 4 bore spindle stroke 170 mm spindle turning speed - stepless 10-2.000 U/min ll diameter 230 mm table dimensions 900 x 770 mm vertical travel of crossrail-slide 630 mm boring spindle 6 Stück/ 0.02-0.20 U/min distance between columns 900 mm Passage between spindle and table 815 mm spindle drive 4 PS total power requirement 380 V weight of the machine ca. 3,9 t Lajdpoxwzg Rsfx Am Toc In our assessment, the machine is in good used condition and can be inspected under power by appointment. Accessories, tools, and clamping devices shown are only included in the scope of delivery if this is noted in the additional information. Technical data and specifications are subject to change without notice and errors. Prior sale is reserved.

Condition: good (used), Jig boring/Milling machine HAUSER 3DR Travel X: 400 mm Travel Y: 200 mm Travel Z: 400 mm Spindle: 2 speeds Cone:CM2 Spindle exit: 120 mm 2 speed ranges 60-1500 RPM / 1500-3000 RPM Table size: L 590 mm x W 320 mm Speed variator at the spindle 2 advances Auto descent: 0,03 mm/min - 0,06 mm/min X-axis functional with Mitutoyo devise Y and Z axis: defective scale Voltage: 380 V Width: 1500 mm Depth: 1700 mm Height in low position: 1800 mm Laodpfxoiix Ips Am Tec Weight: approx 1,5 T

Condition: used, Year of construction: 1956, spindle diameter 120 mm x-travel 1200 mm y-travel 600 mm Laedpfxeyqu R Rj Am Tsc z-travel 600 mm turning speeds 19-1900 U/min table-size 600x1200 mm table load 2000 kg spindle taper ISO 50 Feed 0,042-1,46 mm/U weight of the machine ca. . t dimensions of the machine ca. . m The tech. Data are manufacturer or operator information and therefore non- binding. We reserve the right to prior sale; Our terms and conditions of sale apply exclusively. About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit. Your Markus Hirsch Team

Condition: used, Year of construction: 1986, spindle diameter 1 mm x-travel 1 mm y-travel 1 mm Ljdpsylzv Ajfx Am Toac total power requirement 1 kW

Condition: used, Quill for jig boring mill, fine boring mill, plate boring mill, table boring mill, boring mill, milling machine, Laedpfsfc R D Ijx Am Tec -Stroke: 60 mm -in: a wooden box -Dimensions: 390/340/H170 mm -Weight: 15.8 kg

Condition: ready for operation (used), Year of construction: 1990, functionality: fully functional, machine/vehicle number: 0103, travel distance X-axis: 900 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 635 mm, table length: 1,020 mm, table width: 860 mm, No reserve price – guaranteed sale to the highest bid! TECHNICAL DETAILS Worktable Table length: 1,020 mm Table width: 860 mm Max. workpiece weight: 800 kg Travel Longitudinal travel (X-axis): 900 mm Cross travel (Y-axis): 600 mm Ledpjwzxl Uofx Am Tjac Vertical travel (Z-axis): 635 mm Spindle Spindle taper: ISO40 Quill feed (Z-axis): 200 mm Distance table to spindle: 15 – 850 mm Spindle speeds: 10 – 2,500 rpm Table feed rates: 5 – 5,000 mm/min Quill feed steps: 6 Quill feed per revolution: 0.03 mm/rev to 0.33 mm/rev Distance between columns: 950 mm Control: Heidenhain ITNC 320 MACHINE DETAILS Voltage: 50 Hz 3×380 V Connection: 50 Hz 3×380 V Spindle motor: 4.5 kW Power requirement: 10 kVA Dimensions & Weight Dimensions: 2,930×2,370×2,690 mm Weight: 6,500 kg

Condition: refurbished (used), Year of construction: 2025, functionality: fully functional, machine/vehicle number: 7/61, Manufacturing origin Swiss Voltage 380/50/3 Netweight abt. 760 kg Dimensions abt. 1250x1000x1700 mm TECHNICAL DATA WORK CAPACITY Travel X and Y 200x200 mm Vertical slide travel 250 mm Travel of drilling spindle 70 mm Max free passage between table and spindle nose 330 mm Free passage between column and centre of spindle 260 mm Max drilling capacity (steel) 10 mm Max reaming capacity 50 mm TABLE Usable surface 400x300 mm Admitted load 100 kg Travels X and Y through motors Number of T-slots 6 (longitudinal) DRILLING HEAD Spindel morse taper 0 Speed of spindle 150-3000 rpm Feed of drilling spindle 0,015 mm/t PRECISION Direct reading on divided drums 0,01 mm Direct reading on verniers 0,001 mm Guaranteed precision on displacement of slide-way 0,002 mm MEASURE Measuring system direct, optical Elements of measure graduated rule, div.1mm Read-out projection screens Shifting of zero-point yes Laodpfsd Amgkex Am Toc Direct read-out 0,001 mm Guaranteed positioning precision 0,002 mm Installed power 1,2 kW errors and omissions excepted data given without obligation Inventory Nr.2160006, machine equipped with : 1 turning table Ø 220 with optical measure 1 centering microscope with 3-points suspension, zoom 40x, lightening 1 centering device with dial comparator cap. 3 mm. MT0 1 centering point MT0 1 tracing tool with spring-mounted point MT0 1 center punch MT0 1 chuck for centering drills MT0 1 self clamping drill-chuck 0-5 mm., MT0 1 boring head type 0, cap. 0.5-30 mm., MT0 1 levelling foot with 2 round levelling supports

Condition: used, functionality: fully functional, travel distance X-axis: 1,000 mm, travel distance Y-axis: 700 mm, SIP 600 – Precision Coordinate Boring Machine Accuracy Positioning accuracy on X and Y axes over the entire travel: 0.003 mm Capacity Table travel (X axis): 1000 mm Slide travel (Y axis): 700 mm Vertical quill travel: 300 mm Vertical crossrail travel: 780 mm Distance between uprights: approx. 1100 mm Max. distance spindle nose to table: 1000 mm Table Usable table surface: 1100 × 842 mm Maximum load capacity: 1500 kg Feed rates: 1 – 1000 mm/min Rapid traverse: 5000 mm/min Slide (Carriage) Feed rates: 1 – 1000 mm/min Rapid traverse: 5000 mm/min Spindle and Hydrostatic Quill Spindle speed: 40 – 2000 rpm (18 speeds) Automatic boring feeds: 0.04 – 0.35 mm/rev Tool taper: Morse 4 – SIP 4e Spindle motor power: 5.9 kW (8 HP) Hydrostatic quill diameter: 135 mm Functions: Automatic tool clamping Automatic depth stop Spindle rotation direction reversal Speed preselection Machining Assist Unit X and Y axis display: 0.001 mm Z axis display: 0.01 mm Memory capacity: 999 sequences Automatic movements: X and Y / Simultaneous XY Programmable increments: 0.002 / 0.009 / 0.1 / 1 mm Power Supply Electrical supply: 50 Hz – 380 V 60 Hz – 440 V Compressed air: 6 – 10 bar (11 l/min) Lajdpfeyt Rrpjx Am Toc Machine Dimensions Machine footprint: 2870 × 3480 mm Footprint with cabinet: 3870 × 4000 mm Total height: 3235 mm Weight Net machine weight: 10,000 kg Machine weight with cabinet and accessories: 11,000 kg

Condition: used, Drilling / Jig Boring Machine CONSTANT SUPEMEC type P65 Travel X: 500 mm Travel Y: 300 mm Travel Z: 550 mm Cone: SA40 Spindle speed: from 77 to 1520 RPM Table size: Length 1200 mm x Width 420 mm Maxi distance spindle nose/table: 670 mm Laedpoxuf Uasfx Am Tsc Mini distance spindle nose/table: 120 mm Throat depth: 300 mm Variable speed drive for X - Y Voltage: 380 V Width: 1600 mm Depth: 1800 mm Height: 2400 mm Total width with control panel: 2700 mm Weight: 3 T

Condition: used, Jig Boring Machine WMW BKoE 450 x 800 Travel X: 560 mm Travel Y: 400 mm Travel Z: 470 mm Spindle: Ø 90 mm Cone: CM4 Spindle exit: 150 mm Spindle speed: from 50 to 1600 RPM Table size: 450 x 800 mm Maxi loading capacity on table: 400 kg Scale3 axes HEIDENHAIN Automatic descent Voltage: 380 V Width with ends table: 2900 mm / without ends table: 1500 mm Depth: 2500 mm Total height: 2600 mm Weight: 4,5 T Lsdpfexuf Utjx Am Toac

Condition: used, TECHNICAL DETAILS CAPABILITIES - Movement on X-Y : 400 x 250 [mm] - Vertical slide stroke : 400 [mm] - Drilling spindle stroke : 130 [mm] - Clearance between spindle nose and table : 570 [mm] - Clearance between mount and spindle center : 320 [mm] TABLE - Useful surface : 595 x 320 [mm] - Movement X-X : automatic with ball screws - Drilling head - Internal taper : Morse 2 - Spindle speed : 60-3000 [rpm] - Spindle feed : 0.03-0.06 [mm/r] - Voltage : 3 x 380 V / 50 Hz Ledpfxeuhbprs Am Tsac - Installed power : 2.1 kW - Machine net weight : 1100 [kg] - Dimensions : 2050 x 1600 x 1900 [mm] EQUIPMENT - Digital display : X-Y - Circular table : Ø 300 - Machine lamp

Year of construction: 1997, condition: ready for operation (used), functionality: fully functional, travel distance X-axis: 600 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 350 mm, controller manufacturer: Fanuc, spindle speed (max.): 20,000 rpm, machine/vehicle number: 97-VP461, TECHNICAL DETAILS Lasdpeyi U Iaofx Am Tsc Travel X-axis: 600 mm Travel Y-axis: 400 mm Travel Z-axis: 350 mm Spindle speed: 20,000 rpm Tool changer positions: 30 MACHINE DETAILS Control manufacturer: Fanuc EQUIPMENT BT 40 Big Plus tool holder 4th axis table Oil mist minimum quantity lubrication system

Condition: good (used), functionality: fully functional, machine/vehicle number: 901, travel distance X-axis: 370 mm, travel distance Y-axis: 470 mm, travel distance Z-axis: 405 mm, spindle speed (max.): 2,000 rpm, spindle speed (min.): 75 rpm, table length: 500 mm, table width: 380 mm, spindle mount: MK 2, total height: 2,000 mm, total length: 1,590 mm, total width: 1,290 mm, quill stroke: 155 mm, Jig boring mill, fine boring mill, plate boring mill, table boring mill, boring mill. -Jig boring machine: including tool cabinet with various tools -Table dimensions 380 x 500 mm -Travel: Z 405 mm/Y 470 mm/X 370 mm -Quill stroke: 155 mm -Take: MK2 (plus outer cone for spindle tool) -Speeds: 75 - 2000 rpm -Machine dimensions: 1590/1290/H2000 mm -Machine weight: 1774 kg -Cabinet dimensions: 720/460/H1000 mm Lajdjy Af Thspfx Am Toc -Cabinet weight: 158 kg Price negotiable Rotary table shown in one of the pictures not included Worldwide shipping can be arranged at additional charges

Condition: excellent (used), Year of construction: 2014, functionality: fully functional, machine/vehicle number: 1111254, MACHINE SPECIFICATION Table size 660mm x 356mm X axis traverse 508mm Y axis traverse 406mm Z axis traverse 508mm Spindle nose to table 102-610mm Spindle BT40 Spindle speeds 0-8100rpm Spindle motor 14.9kW Rapid feed rate 25.4m/min Toolchanger capacity 20 tools Approximate weight 3220Kg MACHINE EQUIPPED WITH: - Haas (Fanuc compatible) CNC Control Swarf auger Filtermist extraction system 10 off assorted BT40 toolholders Programmable coolant nozzle Automatic lubrication system Lsdpfx Amoyrrx Ue Tjac Lighting Enclosed guarding