Used Green-Tec Mt2 for sale (7,959)

Condition: new, Year of construction: 2026, functionality: fully functional, machine/vehicle number: CCR-650, Purpose • Designed for efficiently removing the core from various vegetables, specifically Chinese cabbage and cabbage. Features • Manual Feeding Mechanism: The machine operates with manual feeding, allowing it to accommodate vegetables of varying diameters. By aligning the vegetable with the center of the blade, the core is effectively and consistently removed. • Efficiency: Engineered to quickly and efficiently remove cabbage cores, enhancing productivity in food processing environments. • Consistency: Provides uniform results by automating the core removal process, ensuring that each piece of cabbage is prepared consistently. • Labor Savings: Reduces the need for manual labor in core removal, Lasdpfx Aist Av Hvjisb allowing staff to focus on other tasks and improving overall workflow. • Commercial and Industrial Application: Ideal for use in commercial kitchens, food processing plants, and other industrial settings where large volumes of cabbage are processed. • Precision: Designed for precise core removal, minimizing waste and maximizing the usable portions of the vegetable. • Usage • Primarily utilized in commercial or industrial kitchens where large quantities of cabbage and similar vegetables need to be cored efficiently for use in various dishes and food products. • Additional Considerations • When selecting a cabbage core remover, it's crucial to assess the specific requirements of the kitchen or processing facility. Different models may offer various capacities, features, and levels of automation to meet diverse operational needs.

Year of construction: 1996, condition: ready for operation (used), functionality: fully functional, Renholmen greensorting line 45 sorting pockets, sticking machine with sticks handling and Finnscan + OT-laite, speed is 100 m/min and it is fully automated line with stickhandling one operator, automation is made 2019 Workpiece length max - 6.100 mm Maximum sorting speed: 130-150 pcs/min Maximum capacity: 260,000 m3/year Ledpfx Asxg Rgxsiioab

Year of construction: 2003, condition: used, 1 Markert Cleantec continuous surface cleaning machine, year of manufacture: 2003 Continuous length approx. 7,000 mm with division into washing zones, rinsing zone, and blow-off system with associated transport system with 2 x 90° curved elements with chain drive with electric control for transporting wire mesh baskets, primarily 400 x 600 mm with associated control cabinet for controlling the timed material flow Machine no.: 932 * Lajdoyfumnopfx Aiieb

Condition: used, Year of construction: 2002, Schneidmaschine mit Rüttler - Guillotine with Jogger Wohlenberg 137 CUT-TEC Year 2002 - Serial-No. 3834-006 Schnittbreite / Cutting width max. 1370mm Programm - Duisplay / Program - Display Lufttisch - Chromtisch / Light guard - chrome table große-Luft-Seitentische / large airbed side tables Lichtschranke / Light guards Ersatzmesser / Spare knives CE-Zeichen-Zulassung / CE Certificate Elektr. Anschluss / Power supply 3 Phase 380V - 10ASchüttelautomat Rüttler mit Ausstreichwalze / Automatic Jogger with Press Rollers Baumann BSB 6 L Year 2003 - Serial-No. 211.917 Bogenformat / Sheet Size max. 1050 x 1450mm Lagenhöhe / Ream height max. 160mm Online-Video-Inspection by Skype-Video We would be very pleased with your visit - more machines on Stock Available Immediately - Can be inspect On Stock Emskirchen / Nürnberg - Can be test Laodpfoiqp Awjx Aiiob

Condition: new, power: 90 kW (122.37 HP), fuel type: electric, overall weight: 3,500 kg, color: white, gearing type: automatic, number of seats: 2, total width: 1,600 mm, total height: 1,930 mm, loading space length: 3,500 mm, loading space width: 1,600 mm, loading space height: 400 mm, Year of construction: 2023, Equipment: ABS, electronic stability program (ESP), ++ RENT ++ BUY ++ RENT ++ BUY ++ RENT ++ BUY ++ Internal Number: #ECarry Fully Electric Gully Cleaner eCARRY SUBTECH ProClean Frame Chassis Manufacturer: Green G Model: ECarry Axle Configuration: 4x2 Ledpjxc S Amefx Aiijab EURO Standard: Fully electric Power: 90 kW peak / 60 kW nominal Fast Charger: optional Motor: 350V DC, 380 Nm PTO: Electro-hydraulic Battery Capacity: 70 kW Maximum Speed: 80 km/h Windscreen: Heated Cab: Low entry cab Heating / Ventilation: Webasto Headlights: LED, warning light bar Steering Position: Right-hand drive Brake System: Hydraulic (4-circuit ABS) Additional Battery Superstructure Manufacturer: SUBTECH/Lowis Model: ProClean Frame Discharge Type: Rear tipping Platform Dimensions (L/W/H in mm): 3,500 x 1,600 x 400 Additional Equipment: Swing tailgate, toolboxes, work lights Dimensions & Weights L x W x H: 5,640 x 1,600 x 1,930 Wheelbase mm: 2,500 Unladen Weight kg: 2,500 in standard version

Condition: used, Schneidmaschine - Guillotine Wohlenberg CUT-Tec 76 Year 2005 - Serial-No. 3901-006 Schnittbreite max. 760mm / Cutting width max. 760mm Programm - Duisplay / Program - Display Lufttisch - Chromtisch / Light guard - chrome table Laedpfx Aiswnpwheiob CE-Zeichen-Zulassung / CE Certificate Elektr. Anschluss / Power supply 3 Phase 380V - 10A Ersatzmesser / Spare knives Sehr guter Zustand - in very good Condition Online-Video-Inspection by WhatsApp - MS Zoom - Telegram On Stock Emskirchen/Nürnberg - Available Immediately - Can be test

Condition: used, Schneidmaschine / Guillotine Wohlenberg CUT-Tec 92 Year 2007 - Serial-No. 3932-009 Schnittbreite max. 920mm / Cutting width max. 920mm Programm - Duisplay / Program - Display Lufttisch - Chromtisch / Light guard - chrome table CE-Zeichen-Zulassung / CE Certificate Elektr. Anschluss / Power supply 3 Phase 380V - 10A Ersatzmesser / Spare knives Sehr guter Zustand - in very good Condition Online-Video-Inspection by WhatsApp - MS Zoom - Telegram On Stock Emskirchen/Nürnberg - Available Immediately - Can be test Laedewgbt Sopfx Aiijb

Condition: used, This listing is for a Tissue-Tek TEC 4715 Embedding centre with Cryo console Coldplate Lajdpfexzhg Esx Aiisb

Condition: used, This listing is for a Sakura Tissue-Tek Tec 5 CM E-2 Cold Plate Lasdpfx Aisxzgzbeijb The Sakura Tissue-Tek TEC 5 CM E-2 Cold Plate is the cryogenic cooling component (cold plate) of the broader Sakura Tissue-Tek TEC 5 tissue embedding system — a key part of histology workflows in pathology and research labs. It’s designed to rapidly cool and solidify paraffin-embedded tissue blocks during processing Typical Use Case This cold plate is used by histology technicians and pathologists to cool paraffin blocks immediately after embedding so that they are firm and stable enough for trimming and sectioning on microtomes — a critical step toward producing high-quality histological slides for diagnosis or research.

Condition: good (used), Year of construction: 2019, functionality: fully functional, measuring range X-axis: 500 mm, measuring range Y-axis: 700 mm, measuring range Z-axis: 500 mm, warranty duration: 12 months, Equipment: documentation/manual, DELIVERY TO UK ONLY Global S Green 05.07.05 HH-AS6-T5, 5° Automatic Indexing Head HP-TM Touch Trigger Probe Standard Styli Kit PC-DMIS Measurement Software Year of Manufacture 2019 Laodpfju Snthex Aiieb Please contact us for alternative configurations. Measuring Range: X 500mm, Y 700mm, Z 500mm MPE(E0/E150) (18 °C - 22 °C) 1.5 + L/333

Condition: used, overall weight: 24,000 kg, axle configuration: 3 axles, first registration: 02/2010, * 3rd deck * Lifting roof * Loading ramp * Partition grid * Air suspension front & rear * 1st deck: 8.01 m x 2.45 m = 19.62 m² * 2nd deck: 7.85 m x 2.31 m = 18.13 m² * 3rd deck: 7.85 m x 2.25 m = 17.66 m² * Unladen weight: 8,390 kg -----Internal vehicle number: 9467----Errors & prior sale excepted. WhatsApp support available! If you have any questions regarding the vehicle or would like more information, feel free to contact us easily via WhatsApp. Ledpfxjw A Exks Aiieab Whatsapp Whatsapp

Condition: excellent (used), mileage: 98,000 km, power: 331 kW (450.03 HP), first registration: 04/2017, fuel type: diesel, axle configuration: 8x4, fuel: diesel, brakes: retarder, color: red, driver cabin: sleeper cab, gearing type: automatic, emission class: euro6, suspension: air, Year of construction: 2017, operating hours: 4,893 h, Equipment: ABS, air conditioning, central locking, crane, cruise control, electric window regulation, navigation system, parking heater, power mirror, retarder, trailer coupling, = Additional Options and Accessories = - Aluminium fuel tank - Low noise emission - Speed limiter - Intarder - Refrigerator - Alloy wheels - Air suspension - Rear-view camera - Sun visor - Auxiliary heater - Toolbox - Xenon lighting - Power take-off (PTO) - Central lubrication - Towing hitch Ledpfx Ajv Uavvoiisab = Additional Information = Axle configuration Suspension: Air suspension Front axle 1: Alloy wheels; steerable Front axle 2: Alloy wheels; steerable Rear axle 1: Alloy wheels Rear axle 2: Alloy wheels Weights Unladen weight: 29,100 kg Payload: 7,900 kg Gross vehicle weight: 37,000 kg Functionality Crane: Palfinger PK 165.002 TEC F + JIB PJ 300L F, year of manufacture 2017, mounted behind the cab Body brand: Palfinger PK 165.002 TEC F + JIB PJ 300L F CE marking: yes Condition Technical condition: very good Visual condition: very good Financial Information Price: On request

Condition: excellent (used), Steel bezel centre height 650 mm Clamping diameter 650 mm height from base 1190 mm ges. Height can be optionally reduced by 100 mm and the centre height can also be reduced by 100 mm by unscrewing an intermediate plate. Lodogzhbzspfx Aiijab further details, see picture

Condition: used, mileage: 207,700 km, power: 309 kW (420.12 HP), first registration: 07/2020, fuel type: diesel, empty load weight: 15,200 kg, maximum load weight: 16,800 kg, overall weight: 32,000 kg, wheelbase: 5,100 mm, fuel: diesel, brakes: retarder, color: white, driver cabin: sleeper cab, gearing type: automatic, emission class: euro6, suspension: steel-air, Equipment: ABS, air conditioning, cruise control, differential lock, low noise, navigation system, onboard computer, parking heater, soot filter, trailer coupling, MAN TGS 35.420 8X2-6 BL M-Tec Hooklift / Silo Changer Combi Unit (2 units available) First registration: 07/2020 Only 207,700 KM with documentation Euro 6 emission class Long-distance driver cab Automatic transmission Retarder Lasdpfox U Ef Uox Aiiob Air conditioning, auxiliary heater Navigation system Lane departure warning, adaptive cruise control Towbar Gross weight variant: 35,000 kg Axle configuration: 8X2-6 Leaf/air suspension 2nd axle liftable 4th axle steerable and liftable Wheelbase: 5,100 mm Tyres: 315/70R22.5, tread approx. 50% Unladen weight: 15,200 kg Hooklift/Silo changer combi unit M-Tec HLS 20 Year of manufacture: 2020 For roll-off containers and silos Additional TSA pocket silo module Lifting and tipping capacity max.: 20,000 kg Export / net price: €79,900 All information subject to change and errors excepted.

Condition: good (used), Relay, contactor, semiconductor contactor, contactor Lodpfx Aiofmy Hvsisab -Elero: Uni-Tec 868 wireless wall transmitter -Application: roller shutters, awnings blinds, special applications -Price: per piece -Number: 1 pieces -Dimensions: 81x81x22 mm (LxWxD) -Weight 0.1 kg/piece

Condition: like new (used), Designed to snip green beans. Throughput is subject to the variety and dimensions of the product. Loading height: 1.60 m Unloading height: 1.35 m Drum width: 80 cm Drum length: 2.20 m Exit diameter: 57 cm Laedpfxjx S Ezde Aiijb

Condition: used, Farley greene Sievmaster Rota 200 stainless steel screening machine centrifugal screen Basket diameter 180mm x 810mm Laodpfxowyfztj Aiisb Fitted with control cabinet with frequency regulator Fitted with mobile frame See our other advertisements VMA Wekerom

Condition: used, total width: 1,000 mm, total height: 800 mm, total length: 600 mm, Party offer steel stacking bin with lid (10 pieces) Price per party € 690,- Excl. VAT (€ 834.9 Incl. VAT) Outside dimensions: 1000x800x600mm Price is ex Vaassen Laedpfx Aevn I Tioiisb Available from stock (subject to interim sale) Delivery possible at additional cost

Condition: ready for operation (used), Step-Tec HVCS230-S-20-1.2/15-3FD-HSK-A63 high-speed spindle Id. 6014.058.A.10e removed from Norte VS500 Speed, the thread on one of the connectors is damaged, see photo, used, normal signs of wear, 100% functional, scope of delivery as per photos, ATTENTION: Please enquire for charges for packing and transport separately! ATTENTION: Please enquire for charges for packing and transport separately! Lsdpfx Ajul Ipnsiioab

Condition: used, Year of construction: 2015, front tire size: 540/65R30, rear tire size: 620/70R42, Equipment: compressed air brake, Tires on front axle are municipal tires / Lajdpjt I E Uajfx Aiijb

Condition: used, mileage: 914,666 km, power: 309 kW (420.12 HP), first registration: 01/2006, fuel type: diesel, empty load weight: 7,990 kg, maximum load weight: 10,010 kg, overall weight: 18,000 kg, tire size: 315 / 60 R 22,5, axle configuration: 4x2, wheelbase: 3,550 mm, brakes: retarder, color: black, driver cabin: sleeper cab, gearing type: automatic, emission class: euro4, suspension: air, total length: 2,550 mm, total width: 4,000 mm, number of seats: 2, Equipment: additional headlights, air conditioning, cabin, cruise control, differential lock, low noise, parking heater, seat heater, spoiler, Vehicle location: Bovenden, Opticruise gearbox, Lg. House, Topline, 1x air seat, 2x recliner, seat heating, electric mirror, heated mirror, electric window left, electric window right, air conditioning, sun visor, radio, cruise control, burl wood decor, center console, electric roof, auxiliary heating, retarder, roof spoiler, side spoiler, lifting+lowering, differential lock, driving lights, work lights, air suspension, low noise G1, environmental badge green Wheelbase: 3550 mm Body: Topline, Lowliner second engine approx. 300,000 km only run, Euro 3 engine with Twin Tec soot filter cat RFK-TT-N10 (PMK 2 green sticker), fifth wheel height 950 mm ACCESSORIES WITHOUT WARRANTY, subject to alterations, prior sale and errors excepted! - . Ledpfovhhd Isx Aiioab

Condition: new, Year of construction: 2025, warranty duration: 36 months, New machine 3-year warranty including delivery* & instruction in your bakery * Ground-level installation and sufficient door widths required Advantages: + unbeatable price-performance ratio + modern, volumetric dough dividing machine (gentle on the dough, without vacuum!) + particularly suitable for soft wheat-rye mixed dough + extended weight range possible with double piece output (60 - 740 g piece weight) + revolutionary dough dividing system requires minimal cleaning effort + no dough residue in the drum at the end of the production cycle + dividing the dough without unnecessary stress and compression of the dough + high precision of the dough weights at the same time + pressure lubrication with oil circulation and filtration, very low oil consumption + easier filling of the dough hopper due to low height + height-adjustable conveyor belt can be selected + ejection onto a table or other machines (rounder, etc.) possible STANDARD equipment: + weighing chamber made of stainless steel + robust Construction: steel frame, stainless steel housing + Double piece function (only for model with 1 piston) + Touchscreen control with self-cleaning program >> Setting the hourly output / piece counter / piece weight >> Programming and naming of recipes >> Reading the production statistics + Electronic speed setting + Electronic weight setting + Electronic piece counter + Teflon-coated stainless steel funnel (conical or square depending on size), + 40 kg dough capacity with safety grid in accordance with CE >> Other funnel sizes available for a small additional charge (80 / 120 / 160 / 200 / 300 kg dough) + Separately driven and height-adjustable output belt + Adjustable flour sprinkler, prevents dough pieces from sticking to the output belt + Scraper on the dough output belt Technical data: Capacity: 900 - 2500 pieces per hour (depending on dough) Unit weight: 30 - 370 grams (depending on dough) Piston: 1 dough part piston (diameter 80 mm), 1-row dough output Power: 2.45 kW Connection values: 400V - 3Ph- 50Hz Fuse: 16A-CEE plug Dimensions of machine in working position: 1120-1136 x 626 x 1501 mm (WxDxH) Dimensions of machine in resting position: 1052 x 626 x 1501 cm (WxDxH) Input height with 40 kg hopper: 1501 mm Net weight: 410 kg SPECIAL accessories, prices on request: - Stainless steel drag for pre-wrapping - Frequency converter for continuously adjustable speed of the dough output belt - Take-off roller on chamber output Ledpowyu Upofx Aiioab - Short rounding bar - Higher ground clearance 10/15/20 cm - Additional power connection for connection to work table / rounding beam etc. >> 400 V high current / 3 Ph >> 230 V light current / 1 Ph or 3 Ph

Condition: new, Year of construction: 2025, warranty duration: 36 months, New machine 3-year warranty including delivery* & instruction in your bakery * Ground-level installation and sufficient door widths required Advantages: + unbeatable price-performance ratio + modern, volumetric dough dividing machine (gentle on dough, without vacuum!) + particularly suitable for soft wheat-rye mixed dough + extended weight range possible with double piece output (100 - 1400 g piece weight) + revolutionary dough dividing system requires minimal cleaning effort + no dough residue in the drum at the end of the production cycle + dividing the dough without unnecessary stress and compression of the dough + high precision of the dough weights at the same time + pressure lubrication with oil circulation and filtration, very low oil consumption + easier filling of the dough hopper due to low height + height-adjustable conveyor belt can be selected + ejection onto table or other machines (rounder, etc.) possible STANDARD equipment: + weighing chamber made of stainless steel + robust Construction: steel frame, stainless steel housing + Double piece function (only for model with 1 piston) + Touchscreen control with self-cleaning program >> Setting the hourly output / piece counter / piece weight >> Programming and naming of recipes >> Reading the production statistics + Electronic speed setting Lasdpfewyu Uvsx Aiijb + Electronic weight setting + Electronic piece counter + Teflon-coated stainless steel funnel (conical or square depending on size), + 40 kg dough capacity with safety grid in accordance with CE >> Other funnel sizes available for a small additional charge (80 / 120 / 160 / 200 / 300 kg dough) + Separately driven and height-adjustable output belt + Adjustable flour sprinkler, prevents dough pieces from sticking to the output belt + Scraper on the dough output belt Technical data: Capacity: 900 - 2500 pieces per hour (depending on dough) Unit weight: 70 - 1400 grams (depending on dough) Piston: 1 dough part piston (diameter 70 mm), 1-row dough output Power: 2.45 kW Connection values: 400V - 3Ph- 50Hz Fuse: 16A-CEE plug Dimensions of machine in working position: 1120-1136 x 626 x 1501 mm (WxDxH) Dimensions of machine in resting position: 1052 x 626 x 1501 cm (WxDxH) Input height with 40 kg hopper: 1501 mm Net weight: 410 kg SPECIAL accessories, prices on request: - Stainless steel drag for pre-wrapping - Frequency converter for continuously adjustable speed of the dough output belt - Take-off roller on chamber output - Short rounding bar - Higher ground clearance 10/15/20 cm - Additional power connection for connection to work table / rounding beam etc. >> 400 V high current / 3 Ph >> 230 V light current / 1 Ph or 3 Ph

Condition: new, Year of construction: 2025, warranty duration: 36 months, New machine 3-year warranty including delivery* & instruction in your bakery * Ground-level installation and sufficient door widths required Advantages: + unbeatable price-performance ratio + modern, volumetric dough dividing machine (gentle on the dough, without vacuum!) + particularly suitable for soft wheat-rye mixed dough + extended weight range possible with double piece output (180 - 2000 g piece weight) + revolutionary dough dividing system requires minimal cleaning effort + no dough residue in the drum at the end of the production cycle + dividing the dough without unnecessary stress and compression of the dough + high precision of the dough weights at the same time + pressure lubrication with oil circulation and filtration, very low oil consumption + easier filling of the dough hopper due to low height + height-adjustable conveyor belt can be selected + ejection onto a table or other machines (rounder, etc.) possible STANDARD equipment: + weighing chamber made of stainless steel + robust Construction: steel frame, stainless steel housing + Double piece function (only for model with 1 piston) + Touchscreen control with self-cleaning program >> Setting the hourly output / piece counter / piece weight >> Programming and naming of recipes >> Reading the production statistics + Electronic speed setting + Electronic weight setting + Electronic piece counter + Teflon-coated stainless steel funnel (conical or square depending on size), + 40 kg dough capacity with safety grid in accordance with CE >> Other funnel sizes available for a small additional charge (80 / 120 / 160 / 200 / 300 kg dough) + Separately driven and height-adjustable output belt + Adjustable flour sprinkler, prevents dough pieces from sticking to the output belt + Scraper on the dough output belt Technical data: Capacity: 900 - 2500 pieces per hour (depending on dough) Piece weight: 90 - 1000 grams (depending on dough) Piston: 1 dough part piston (diameter 120 mm), 1-row dough output Power: 2.45 kW Connection values: 400V - 3Ph- 50Hz Fuse: 16A-CEE plug Dimensions of machine in working position: 1120-1136 x 626 x 1501 mm (WxDxH) Dimensions of machine in resting position: 1052 x 626 x 1501 cm (WxDxH) Input height with 40 kg hopper: 1501 mm Net weight: 410 kg SPECIAL accessories, prices on request: - Stainless steel drag for pre-wrapping - Frequency converter for continuously adjustable speed of the dough output belt - Take-off roller on chamber output Ljdpfx Aijwyvvbeijab - Short rounding bar - Higher ground clearance 10/15/20 cm - Additional power connection for connection to work table / rounding beam etc. >> 400 V high current / 3 Ph >> 230 V light current / 1 Ph or 3 Ph

Condition: new, Year of construction: 2025, warranty duration: 36 months, New machine 3-year warranty including delivery* & instruction in your bakery * Ground-level installation and sufficient door widths required Advantages: + unbeatable price-performance ratio + modern, volumetric dough dividing machine (gentle on the dough, without vacuum!) + particularly suitable for soft wheat-rye mixed dough + extended weight range possible with double piece output (400 - 3300 g piece weight) + revolutionary dough dividing system requires minimal cleaning effort + no dough residue in the drum at the end of the production cycle + dividing the dough without unnecessary stress and compression of the dough + high precision of the dough weights at the same time + pressure lubrication with oil circulation and filtration, very low oil consumption + easier filling of the dough hopper due to low height + height-adjustable conveyor belt can be selected + ejection onto a table or other machines (rounder, etc.) possible STANDARD equipment: + weighing chamber made of stainless steel + robust Construction: steel frame, stainless steel housing + Double piece function (only for model with 1 piston) + Touchscreen control with self-cleaning program >> Setting the hourly output / piece counter / piece weight >> Programming and naming of recipes >> Reading the production statistics + Electronic speed setting + Electronic weight setting + Electronic piece counter + Teflon-coated stainless steel funnel (conical or square depending on size), + 40 kg dough capacity with safety grid in accordance with CE >> Other funnel sizes available for a small additional charge (80 / 120 / 160 / 200 / 300 kg dough) + Separately driven and height-adjustable output belt + Adjustable flour sprinkler, prevents dough pieces from sticking to the output belt + Scraper on the dough output belt Lodpfx Aevw R Ihsiieab Technical data: Capacity: 900 - 2500 pieces per hour (depending on dough) Piece weight: 200 - 1650 grams (depending on dough) Piston: 1 dough part piston (diameter 150 mm), 1-row dough output Power: 2.45 kW Connection values: 400V - 3Ph- 50Hz Fuse: 16A-CEE plug Dimensions of machine in working position: 1120-1136 x 626 x 1501 mm (WxDxH) Dimensions of machine in resting position: 1052 x 626 x 1501 cm (WxDxH) Input height with 40 kg hopper: 1501 mm Net weight: 410 kg SPECIAL accessories, prices on request: - Stainless steel drag for pre-wrapping - Frequency converter for continuously adjustable speed of the dough output belt - Take-off roller on chamber output - Short rounding bar - Higher ground clearance 10/15/20 cm - Additional power connection for connection to work table / rounding beam etc. >> 400 V high current / 3 Ph >> 230 V light current / 1 Ph or 3 Ph