Used Ingersoll Die-Sinking Edm for sale (4,802)

Condition: good (used), Year of construction: 2013, total length: 3,990 mm, total height: 2,500 mm, total width: 2,280 mm, overall weight: 8,500 kg, INGERSOLL CM SYSTEMS AOHD AGILE OIL HOLE DRILL Equipped with: Siemens 840D Control (2) Drill Heads 20-Tool Rack HSK 50A Taper (2) 7" 3-Jaw Chucks (2) Tailstocks (2) Steady Rests Chip Auger Chip Conveyor Mist Collector Hydraulic System Q R 2 Lube System Air Compressor Specifications: Maximum Length: 1050 mm (41.3") Minimum Length: 180.0 mm (7.1") Maximum Stroke: 250.00 mm Maximum Main Journal Diameter: 115.0 mm (4.5") Maximum Pin Journal Diameter: 100.00 mm (3.9") Maximum Swing Diameter: 250.0 mm (9.84") X-Axis Travel: 1450 mm (57.1") Y-Axis Travel: 150 mm (5.9")W/HSK 50 Z-Axis Travel: 305.0 mm (12.0") A-Axis Travel: 360 Degree B-Axis Travel: 90 Degree Feed Rate (Z): 1 m/min Maxim (40"/min max) Position Accuracy of X,Y,Z Axes: .010 mm (.00039") Position Accuracy of A & B Axes: .03 Degree Position Repeatability of X,Y,Z Axes: .005 mm (.0002") Position Repeatability of A & B Axes: .005 Degree Spindle Power: 5.5 kW (7.5 hp) Spindle Speed: 0-6,900 RPM Tool Adaption: HSK 50E or A Tool Storage (ATC): 20 Total - 10 Per Spindle W/HSK 50 Lubrication - Slides & Ball Screws: Automatic Central Lubricator Approximate Floor Space (LxWxH): 4.0 x 2.3 x 2.5 m (13.1 x 7.5 x 8.2 Ft) Approximate Machine Weight: 8,500 kg (18,740 #) Kdjdpfertrx Rsx Ab Hor

Condition: ready for operation (used), Year of construction: 2004, functionality: fully functional, machine/vehicle number: J20M0260A, workpiece weight (max.): 1,500 kg, travel distance X-axis: 500 mm, travel distance Y-axis: 350 mm, travel distance Z-axis: 300 mm, wire diameter (max.): 0.3 mm, No minimum price – guaranteed sale to the highest bidder! Kdodpfx Abszu N Abo Hjr TECHNICAL DETAILS Travel range X-axis: 500 mm Travel range Y-axis: 350 mm Travel range Z-axis: 300 mm Travel range U/V: ±60 mm Workpiece size: max. 1,050 × 800 × 295 mm Workpiece weight: max. 1,500 kg Available wire diameters: 0.10–0.30 mm MACHINE DETAILS Dimensions & Weight Machine dimensions (L x W x H): 2,200 × 2,500 × 2,150 mm Machine weight: 3,700 kg EQUIPMENT Automatic wire threading

Condition: ready for operation (used), Year of construction: 2008, travel distance X-axis: 550 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 350 mm, total height: 2,200 mm, This 3-axis AgieCharmilles Spirit 3 was manufactured in 2008. It features an integrated C-axis and electrode magazine, multitasking operating system with object-oriented graphical interface (AEP Spirit), and a table size of 850×650 mm. Movement range includes X:550, Y:400, Z:350. Consider the opportunity to buy this AgieCharmilles Spirit 3 wire EDM machine. Contact us for more information about this machine. Machine Benefits Technical Machine Benefits • Table size: 850 mm x 650 mm • Wear parts, some drive motors, and bearings have been replaced over the years. • Integrated c-axis and integrated electrode magazine. Dimensions Kdjdpfxsx D N Hre Ab Hsr Machine Depth 1800 mm

Condition: refurbished (used), Year of construction: 2015, functionality: fully functional, travel distance X-axis: 600 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 450 mm, workpiece weight (max.): 1,600 kg, total height: 2,780 mm, total width: 2,265 mm, total length: 2,110 mm, quill stroke: 450 mm, workpiece length (max.): 1,220 mm, workpiece width (max.): 870 mm, workpiece height (max.): 470 mm, The GF AgieCharmilles FORM 300, built in 2015, is a powerful and precise used die-sinking EDM machine, specially designed for demanding machining tasks in tool and mold making. Thanks to its modern control system, excellent surface quality, and high efficiency, it offers an excellent investment opportunity for companies that value precision and cost-effectiveness. Key Features & Benefits: ✅ Large work area & high load capacity: Travel paths (X/Y/Z): 600 x 400 x 450 mm Maximum workpiece size: 1220 x 870 x 470 mm Maximum workpiece weight: 1600 kg Maximum electrode weight: 50 kg ✅ High-precision machining with state-of-the-art technology: Positioning accuracy thanks to linear glass scales (no recalibration required) Innovative ISPG (Intelligent Speed Power Generator) for maximum efficiency Adaptive control (ACC & ACO) for optimized spark discharge and reduced electrode wear Surface quality up to Ra 0.08 µm ✅ Powerful control & automation: AC FORM HMI with intuitive user interface & touchscreen Automatic CAD/CAM linking for seamless data transfer Job management with prioritization and Real-time monitoring Remote monitoring via SMS notification ✅ Maximum productivity & flexibility: Automatic 48-station electrode changer for unattended machining Intelligent workpiece measurement & 3D correction Reduced electrode wear thanks to iQ technology Kdjdpfxsw Ebtvj Ab Hjr ✅ Reliability & low operating costs: Robust C-construction with high stability Efficient dielectric management with 6 filter cartridges Energy-efficient operation with low maintenance requirements Ideal for: ✔ High-precision mold and tool machining ✔ Series production with the highest quality requirements ✔ Complex geometries and fine surface structures Experience maximum productivity with the GF AgieCharmilles FORM 300 – your solution for precise and economical die-sinking EDM! 📌 Our used machine, built in 2015, is cleaned, overhauled, and comprehensively tested before sale to ensure the highest quality and reliability.

Condition: new, Year of construction: 2026, functionality: fully functional, workpiece weight (max.): 300 kg, travel distance X-axis: 320 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 260 mm, total height: 1,800 mm, total length: 1,650 mm, total width: 1,150 mm, wire diameter (max.): 18 mm, workpiece height (max.): 400 mm, workpiece width (max.): 580 mm, workpiece length (max.): 580 mm, type of input current: three-phase, table width: 600 mm, overall weight: 1,700 kg, table length: 600 mm, table height: 380 mm, empty load weight: 1,400 kg, warranty duration: 12 months, table load: 300 kg, input voltage: 400 V, quill travel distance: 80 mm, quill diameter: 6 mm, quill stroke: 80 mm, stroke length: 80 mm, tank capacity: 110 l, cutting speed: 600 mm/min, input current: 6 A, positioning accuracy: 2 mm, Equipment: documentation/manual, Digima DK7732 CNC EDM Wire Cut Machine – 320 × 400 mm Product Description The Digima DK7732 is a compact CNC EDM wire cutting machine designed for precise machining of small and medium-sized metal components. It is suitable for tool rooms, mould and die production, maintenance workshops, precision engineering companies, as well as single-piece and batch production. The machine provides an X/Y working travel of 320 × 400 mm, a 380 × 600 mm worktable, a maximum workpiece height of 400 mm, and a maximum permitted workpiece weight of 300 kg. Its rigid construction and machine weight of 1,400 kg help reduce vibration and support stable, repeatable machining. EDM wire cutting technology allows the machine to produce accurate contours, narrow slots, holes and complex shapes in electrically conductive materials, including hardened metals that may be difficult to process using conventional cutting tools. Main Advantages CNC-controlled EDM wire cutting machine Compact design suitable for smaller production areas X/Y worktable travel of 320 × 400 mm Large 380 × 600 mm worktable Maximum workpiece height of 400 mm Maximum workpiece weight of 300 kg Stable 1,400 kg machine construction Suitable for complex contours and precision components Designed for mould, die and tool production Suitable for single-piece and serial production Low operating energy requirements Reduced molybdenum wire consumption Suitable for long, continuous machining cycles Technical Specification Parameter Specification Brand Digima Model DK7732 Machine type CNC EDM wire cut machine Condition New Worktable dimensions 380 × 600 mm X/Y worktable travel 320 × 400 mm Maximum workpiece height 400 mm Taper capability 6° / 80 mm Kodpjznttdsfx Ab Hedr Maximum workpiece weight 300 kg Machine net weight 1,400 kg Machine dimensions 1,650 × 1,150 × 1,800 mm Control system CNC/MNC Movement method Linear control Control method Open-loop control Processing accuracy 0.01–0.02 mm Molybdenum wire diameter Ø0.13–Ø0.18 mm Maximum wire speed 600 m/min Maximum cutting speed 200 mm²/min Best surface roughness ≤ Ra 0.8 µm Maximum working current 6 A Rated power 2 kVA Water tank capacity 110 litres Water filtration accuracy 0.005 mm Application Electrically conductive metal materials With a stated processing accuracy of 0.01–0.02 mm, cutting speeds of up to 200 mm²/min, and a best surface finish of up to Ra 0.8 µm, the DK7732 is suitable for applications where dimensional accuracy and surface quality are important. Stable and Economical Operation The DK7732 is designed for stable processing, relatively fine surface quality, low energy consumption and reduced molybdenum wire wear. It is particularly suitable for users who prioritise economical operation and long continuous machining cycles rather than exceptionally high cutting productivity. Delivery and Availability Availability: available Estimated delivery time: approximately 90 working days Transport and installation conditions: to be agreed individually Availability and delivery information should be confirmed before placing the final order. Why Choose the Digima DK7732? The Digima DK7732 combines a practical working range, rigid construction, high workpiece capacity and economical EDM technology. It is a suitable solution for companies looking for a compact wire cutting machine for accurate machining of moulds, dies, tools and specialised metal components.

Condition: as good as new (ex-display), Year of construction: 2024, functionality: fully functional, machine/vehicle number: WKZ45-1030, CLEARANCE SALE, STOCK MACHINE! We invite you to visit our technical center to experience the quality and functionality for yourself. Material Shredder 45KW Hopper opening: 1,030 x 1,235 mm Rotor diameter: 360 mm Star-delta start, automatic shut-off during idle - Hydraulic pusher equipped with pressure plates - Siemens PLC control - Optionally with control cabinet extension for discharge conveyor belt and overband magnetic separator Complete solution with discharge conveyor belt in any configuration. Our core competence lies in delivering exactly what the customer truly needs. We work together with our customers to develop customized, individual solutions and supply corresponding systems from our own production. Please feel free to contact us by phone to find the right solution for your application. Conveyor belt, conveyor system, discharge belts, belt conveyors, magnetic separators, overband magnetic separators, recycling, wood chips, plastics, metal-free, metal detection, neodymium, overband magnet, magnetic belt separator, lifting magnets, filter rods, magnetic grids, magnetic grate, metal separator, block magnet, filter systems All prices are net prices plus 19% VAT All information provided without guarantee, while stocks last! Kdodpfx Abjv Tdq Io Her

Condition: as good as new (ex-display), Year of construction: 2021, functionality: fully functional, For sale is a Cognex camera system for difficult OCR assembly verification and defect detection applications. The system never went into use and is being sold with all accessories as a set as shown in the pictures. Kedpfxsmx Sl Te Ab Hedr The model number is IS7802-373-50-LAB // 821-10035-2R and is welcome to be researched on the internet. Digital Machine Vision Camera (2Mpixel) with PatMax RedLine + Gigabit Ethernet (GigE) - Demonstrator - COGNEX (In-Sight 7000 Gen2 Series) - 7802 - 1600x1200pixels UXGA resolution (1/1.8" CMOS monochrome scanning with global shutter) - 53fps - C-mount type / S-mount type - 7. 2GB (program; non-volatile flash memory) + 512MB (SDRAM) + 8GB (SD card) - 1 x digital input (15-28Vdc / optocoupler; isolated trigger input) + 3 x digital inputs (15-28Vdc / optocoupler; isolated discrete inputs) + 4 x digital outputs (26. 4Vdc 50mA / sink/source discrete outputs) - 8-pin M12 connector (Ethernet) + 5-pin M12 connector (supply) + 12-pin M12 connector (breakout) + Micro SD card slot - supply voltage 24Vdc - with RS-232C + Ethernet + PROFINET + CC-Link + Modbus TCP communication capability - IP67 - aluminum (die-cast) housing - compatible with Patmax redline

Condition: good (used), Year of construction: 2012, Ingersoll Rand screw compressor 225 Kw Year 2012 Kdsdsu Ic Ryspfx Ab Hor

Condition: refurbished (used), Year of construction: 2008, functionality: fully functional, travel distance X-axis: 600 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 500 mm, workpiece weight (max.): 2,000 kg, GF AgieCharmilles FORM 3000 Year of manufacture: 2008 C-type design, fixed table with lowering tank Travels (X/Y/Z): 600 x 400 x 500 mm Distance table to ram: 200-700 mm Max. workpiece size: L x W x H = 1200 x 800 x 350 mm Max. workpiece weight: 2000 kg Integrated C-axis for rotation, indexing, and erosion (U=0-100 rpm) Pneumatic chuck of your choice (Erowa/3R Systems) ISPG generator with 60 Amps Best achievable surface finish Ra 0.10 µm AGIEVISION 5 operating interface 15” color LCD monitor, mouse or touchscreen, membrane keyboard, and manual control Including CAPA electrode changer: - 60 electrode positions - 4 pallet positions Net weight of the system: 5900 kg Machine dimensions: 1790 x 2790 x 3110 mm The machine has already been cleaned, serviced, and thoroughly tested. We would be pleased to invite you for an inspection and test erosion. Kdsdpfx Asxx Uqfjb Hor Optional: - Commissioning and training - Transport and installation - Cooling unit - Dielectric fluid

Condition: used, Year of construction: 2003, Ingersoll Rand ML45 air compressor (2003), 2 units available. Condition: Used, technically sound, currently disconnected. Kodpfx Abexu Acho Hedr Manufacturer: Ingersoll Rand (USA) Model: ML45 Year of manufacture: 2003 Quantity: 2 units Reliable industrial screw compressors designed for the stable supply of compressed air across various industries – manufacturing, metalworking, pneumatic tools, and automation systems. Key technical specifications (according to Ingersoll Rand ML45 catalogue): - Rated power: 45 kW - Air delivery: approx. 7.5–8.5 m³/min (depending on pressure) - Working pressure: 7–10 bar - Compressor type: oil-lubricated screw - Drive: direct - Power supply: 400 V / 50 Hz - Cooling: air-cooled system - Noise level: approx. 72 dB(A) - Compressor weight: approx. 900 kg Condition description: Both units are currently disconnected but were operational prior to shutdown. Operating hour readings are unknown. Visually – in good technical condition, no damage.

Condition: used, TECHNICAL DETAILS TRAVELS - Travels on X/Y/Z axes : 600x400x310 [mm] - Travels on U/V axes : [mm] - Max. taper : [°/mm] PART - Max. part dimensions : 1050x820x300 [mm] - Max. part weight : 1000 [kg] WIRE GUIDE - Wire diameter : 0.1-0.3 [mm] - Coil weight : 16 [kg] POWER SUPPLY - Supply voltage : 380 [V] - Total installed power : 13 [kVA] Kedpeyxhmiofx Ab Hsdr WEIGHT & DIMENSIONS - Machine floor space : 2650x3050 [mm] - Machine height : 2070 [mm] - Machine weight : 3600 [kg] MACHINE HOURS - Spark erosion hours : 2000 [h] EQUIPMENT - CNC : Fanuc 31iw-model B - Cooling unit - Filtration unit

Condition: used, TECHNICAL DETAILS TRAVELS - Travels on X/Y/Z axes : 600x400x310 [mm] - Travels on U/V axes : [mm] Kdjdpfxeyxhmvo Ab Hjr - Max. taper : [°/mm] PART - Max. part dimensions : 1050x820x300 [mm] - Max. part weight : 1000 [kg] WIRE GUIDE - Wire diameter : 0.1-0.3 [mm] - Coil weight : 16 [kg] POWER SUPPLY - Supply voltage : 380 [V] - Total installed power : 13 [kVA] WEIGHT & DIMENSIONS - Machine floor space : 2650x3050 [mm] - Machine height : 2070 [mm] - Machine weight : 3600 [kg] MACHINE HOURS - Spark erosion hours : 15000 [h] EQUIPMENT - CNC : Fanuc 31iw-model B - Cooling unit - Filtration unit

Condition: good (used), Year of construction: 2002, Ingersol rand streamline plus waterjet intensifier pump. good working condition Kodpfx Aonp Iywob Hedr

Condition: used, Equipment: soot filter, - Particle filter - Hydraulically extendable up to 5 meters + 1.8 m spreading width, total 6800 mm - 7,500 operating hours - Track chassis Kdjdpfx Aszbza Hob Her

Year of construction: 2009, condition: used, Ingersoll Rand TS1100W Air Dryer Manufacturer Ingersoll Rand (manufactured by Parker Hiross S.p.A, Italy) Type Refrigeration air dryer – industrial version Industrial applications • Air treatment for compressed air in pneumatic systems • Industrial applications requiring dry air: machining, painting, automation, etc. • Protection of equipment sensitive to humidity Main technical specifications: • Model: TS1100W • Serial number: 3733790002 • Cooling: water-cooled • Refrigerant: R407C • Maximum low-side pressure: 1.9 MPa (275 psi) • Maximum high-side pressure: 2.8 MPa (406 psi) Kdsdpfx Aexggmnsb Hor • Circuit pressure: 2.6 MPa (378 psi) • Minimum/maximum air pressure: 4 bar / 14.5 bar • Maximum air temperature: 60°C • Ambient temperature: 5°C to 50°C • Power supply: 400 V – 3 Ph – 50 Hz • Power consumption: 15.6 kW / 27.8 A • Protection level: IP44 • Oil carryover: ≤ 0.01 mg/m³ (with suitable pre-filtration) • Approximate dimensions: 1,450 mm width • Approximate weight: ca. 650 kg • Year of manufacture: February 2009 🧩 Machine usage The Ingersoll Rand TS1100W industrial air dryer is designed to remove moisture from compressed air in production facilities. It protects pneumatic lines, automated equipment, and processes sensitive to humidity, ensuring the reliability and longevity of machinery. ⚙️ Features / Distinctions The TS1100W is distinguished by its water cooling, ideal for industrial environments with high thermal loads. It supports high operating pressures (up to 14.5 bar), and its R407C refrigerant meets modern environmental standards. The robust design allows for heavy-duty, continuous operation.

Condition: used, TECHNICAL DETAILS TRAVELS - Travels on X/Y/Z axes : 600x400x310 [mm] - Travels on U/V axes : [mm] - Max. taper : [°/mm] PART - Max. part dimensions : 1050x820x300 [mm] - Max. part weight : 1000 [kg] WIRE GUIDE - Wire diameter : 0.1-0.3 [mm] - Coil weight : 16 [kg] POWER SUPPLY - Supply voltage : 380 [V] - Total installed power : 13 [kVA] WEIGHT & DIMENSIONS - Machine floor space : 2650x3050 [mm] Kdsdpfey Tzc Tjx Ab Hor - Machine height : 2070 [mm] - Machine weight : 3600 [kg] EQUIPMENT - CNC : Fanuc 31iw-model B - Cooling unit - Filtration unit

Condition: used, TECHNICAL DETAILS - Travels on X/Y/Z axes : 400 x 300 x 350 [mm] - Rapid traverses rates (X/Y/Z) : 6 / 6 / 15 [m/min] - Min./max. distance between table and chuck : 170 / 520 [mm] - Max. part dimensions : 820 x 580 x 250 [mm] - Max. part weight : 800 [kg] Kdjdjwl Rh Njpfx Ab Hjr - Max. electrode weight : 50 [kg] - C axis : 0 - 100 [rpm] POWER SUPPLY - Supply voltage : 400 [V] - Total installed power : 9.1 [kVA] WEIGHT & DIMENSIONS - Machine floor space : 4.700 x 2.750 [mm] - Machine height : 2.680 [mm] - Machine weight : 3.830 [kg] - Number of working hours : 13659 [h] EQUIPMENT - CNC : AGIEVISION 5 - Workpiece loading / unloading robot - Spindle nose : EROWA - Dielectric capacity : 600 [l]

Condition: excellent (used), Year of construction: 2010, Ingersoll Rand TMS 80 Refrigerant Dryer Capacity: 8.2 m3/min Kdjdpfjymmbtjx Ab Hjr Year of manufacture: 2010 The dryer is fully operational.

Condition: used, TECHNICAL DETAILS - Strokes X x Y x Z : 350 x 250 x 350 [mm] - Max. part dimensions : 650 x 580 x 250 [mm] Kedpfxeuhcbie Ab Hodr - Max. part weight : 400 [kg] - Machining intensity : 72 [A] - Tools magazine capacity : 28 - Dielectric volume : 415 [l] - Machine floor space : 2.689 x 1.855 [mm] - Machine height : 2.593 [mm] - Machine weight : 3.000 [kg] - Welding hours : 39.554 [h] EQUIPMENT - CNC AGIEVISION with color screen LCD : 10,4 ['] - Deported electronic crank-handle - Axis C - Spindle chuck : EROWA - Automatic retractable tank - Integrated filtration : DAI 2

Condition: used, TECHNICAL DETAILS Kjdpfxezlk E Sj Ab Hsdr - Travels on X/Y/Z axes : 400 x 300 x 350 [mm] - Rapid traverses rates (X/Y/Z) : 6 / 6 / 15 [m/min] - Min./max. distance between table and chuck : 170 / 520 [mm] - Max. part dimensions : 820 x 580 x 250 [mm] - Max. part weight : 800 [kg] - Max. electrode weight : 50 [kg] - C axis : 0 - 100 [rpm] POWER SUPPLY - Supply voltage : 400 [V] - Total installed power : 9.1 [kVA] WEIGHT & DIMENSIONS - Machine floor space : 4.700 x 2.750 [mm] - Machine height : 2.680 [mm] - Machine weight : 3.830 [kg] - Number of working hours : 13659 [h] EQUIPMENT - CNC : AGIEVISION 5 - Spindle nose : System 3R - Dielectric capacity : 600 [l]

Condition: good (used), Year of construction: 2008, Ingersoll Rand TS3A Compressed Air Refrigeration Dryer 12 bar For sale is a used, professional compressed air refrigeration dryer from Ingersoll Rand – model TS3A, built in 2008. Technical specifications: Max. air pressure: 12 bar (175 psig) Max. air inlet temperature: 60°C (140°F) Kdsdpfxjxl D Ade Ab Hjr Cooling system: Air-cooled Operating voltage: 400V / 3Ph / 50Hz Refrigerant: R404A (3.36 lbs / 1520 g) Refrigerant oil type: ISO 32 Polyol Ester (POE) Power consumption: 4.8 kW Weight: 230 kg Note: For detailed technical specifications and processing instructions, we strongly recommend consulting the original data sheets or contacting the manufacturer directly. Find more items – new and used – in our shop! International shipping costs upon request!

Condition: used, Year of construction: 2015, 20 Ft. Shipping container equipped with screw compressor installation with 2 Ingersoll Rand R30I-A10 screw compressors of 30 kW each. Kedpfswbf U Nsx Ab Hjdr

Condition: good (used), Year of construction: 1997, Parts shown by hand not come. Kdodpfx Ajpy Errsb Her

Condition: good (used), Heidelberg Cylinder SBD 64×89 Automatic Die Cutter The most sought-after machine on the market, in its late 2000s. The machine is in very good condition and ready for operation. Format: 640x890mm The machine is ready for die cutting. Fully automatic, with smooth speed control, central lubrication, and safety guards. The machine features a quick-change carriage system on the infeed and a convenient cabinet on the side of the machine. Includes two frames, spare parts, a cylinder plate, carriages, and a large set of fillers and locks. Kdodpfxszvgk Ej Ab Hjr

Condition: good (used), Year of construction: 2003, functionality: fully functional, pressure: 12 bar, overall weight: 400 kg, input voltage: 400 V, power: 4.3 kW (5.85 HP), high performance refrigeration dryer air dryer 22m3/min ingersoll-rand type: TS220 SS year of manufacture: 2003 Ksdpjrfyrpefx Ab Hodr air flow: max 22000 l/min; max pressure: 12 bar refrigerant: 407C gas - 3.5 kg mains voltage: 400v 50Hz 7.5 A connection: DN80 machine dimensions: length: 1010 width: 1500 height: 1310 weight: 400 kg Ambient temperature 2°C - 50°C Maximum inlet temperature 60°C IP classification IP 44 standard