Optimum OPTImill MH 25PV Operating Instructions Manual

Milling machine

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Operating Instructions

Version 1.0.7

Milling machine

Part no. 3338155

Part no. 3338156

MH 25PV

MH 25V

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Summary of Contents for Optimum OPTImill MH 25PV

Page 1 Operating Instructions Version 1.0.7 Milling machine Part no. 3338155 Part no. 3338156 MH 25PV MH 25V...
Page 2 Table of contents Safety Rating plate...............................5 1.1.1 Machine variants ...........................5 Safety instructions (warning notes)......................6 1.2.1 Classification of hazards .......................6 1.2.2 Other pictograms ...........................6 Intended use .............................7 Reasonably foreseeable misuse.......................8 1.4.1 Avoiding misuse ..........................8 Possible dangers posed by the milling machine..................9 Personnel qualification..........................10 1.6.1 Target group..........................10 1.6.2 Authorized personnel ........................11...
Page 3 Resetting an emergency stop situation ....................29 Power failure, Restoring readiness for operation ................... 29 Speed setting ............................29 Inserting the tool............................. 30 4.8.1 Quick-change clamping system ....................30 4.8.2 Removal on MH 25V ........................30 4.8.3 Removal on MH 25PV......................... 30 4.8.4 Quill clamp - MH 25PV........................
Page 4 Dear customer, Thank you very much for purchasing a product made by OPTIMUM. OPTIMUM metal working machines offer a maximum of quality, technically optimum solutions and convince by an outstanding price performance ratio. Continuous enhancements and prod- uct innovations guarantee state-of-the-art products and safety at any time.
Page 5 Safety Glossary of symbols provides further instructions   calls on you to act Listings  This part of the operating instructions explains the meaning and use of the warning notes included in these operating instructions,  defines the intended use of the milling machine, ...
Page 6 INFORMATION If you are unable to rectify an issue using these operating instructions, please contact us for advice: Optimum Maschinen Germany GmbH Dr. Robert-Pfleger-Str. 26 D-96103 Hallstadt, Germany Email: info@optimum-maschinen.de Safety instructions (warning notes) 1.2.1 Classification of hazards We classify safety instructions into different categories. The table below gives an overview of the classification of symbols (pictograms) and the signal words for each specific danger and its (possible) consequences.
Page 7 We explicitly point out that any construction, technical or process engineering changes that have not been approved by Optimum Maschinen Germany GmbH will render the warranty null and void It is also part of the intended use that you observe the limits of the milling machine, ...
Page 8 WARNING! Extremely severe injuries due to non-intended use. It is forbidden to make any modifications or alternations to the operating parameters values of the milling machine. They could pose an accident hazard to persons and cause damage to the milling machine. Reasonably foreseeable misuse Any use other than that specified under "Intended use"...
Page 9 the suitable speed is set depending on the diameter of the drill,  the pressure must only be such that the drill can cut without load,  if there is too much pressure, the drill will wear quickly and may even break or jam in the ...
Page 10 WARNING! The milling machine may only be used with fully functional safety devices. Disconnect the milling machine immediately, whenever you detect a failure in the safety devices or when they are not fitted! All additional devices installed by the operator must be equipped with the stipulated safety devices.
Page 11 the milling machine and other property and  the functionality of the milling machine may be compromised.  1.6.2 Authorized personnel WARNING! Inappropriate operation and maintenance of the machine constitutes a danger for personnel, property and the environment. Only authorized personnel may operate the machine! Authorized operating and maintenance personnel are specialists instructed and trained by the operator and the manufacturer.
Page 12 Safety measures during operation CAUTION! Danger due to inhaling dust and mist that are hazardous to health. Depending on the materials to be machined and the agents used, dusts and mists can arise that are detrimental to health. Ensure that the harmful dust and mist generated are safely sucked off at the point of origin and routed away from the working area or filtered.
Page 13 1.9.1 Emergency stop button CAUTION! The spindle continues to rotate for a while, depending on the moment of inertia of the spindle and the tool in use. The emergency stop button brings the machine to a standstill. Emergency stop Turn the knob to the right to unlock and hit switch release the emergency stop button.
Page 14 1.9.4 Separation guard Adjust the guard to the correct height before you start working. To do so, slacken the clamping screw, set the required height and re-tighten the clamping screw. There is a switch integrated in the spindle protection mounting which monitors the closed position.
Page 15 1.11 Personal protective equipment For certain work, personal protective equipment is required. Protect your face and your eyes: Wear a safety helmet with facial protection when performing work where your face and eyes are exposed to hazards. Wear protective gloves when handling pieces with sharp edges. Wear safety shoes when you assemble, disassemble or transport heavy components.
Page 16 1.14 Using lifting equipment WARNING! The use of unstable lifting and load suspension equipment that might break under load can cause severe or fatal injuries. Check that the lifting and load suspension equipment are of sufficient load-bearing capability and are in perfect condition. Observe the accident prevention regulations issued by your Employers Liability Insurance Association or other supervisory authorities applicable to your company.
Page 17 Technical specification The following information represents the dimensions and indications of weight and the manufacturer‘s approved machine data. MH 25V MH 25PV Electrical connection Total connected load 230V/50 Hz/2 kW Milling spindle motor power 1.5 kW; 10 Nm Milling capacity Ø...
Page 18 MH 25V MH 25PV Drill-mill head Z axis travel [mm] Throat [mm] Z axis handwheel scale 4mm/rev - graduation 0.02mm Quill stroke [mm] Milling head rotation range + 45° Milling table Table length [mm] Table width [mm] Max. bearing load 30 kg T-slot size/distance/number 12mm / 50mm / 3...
Page 19 MH 25V MH 25PV 2.11 Emissions Maximum sound pressure level at 1 m distance from 79 dB(A) on no load running the machine and 1.60 m above the ground. CAUTION! The machine operator should use hearing protection. INFORMATION This numerical value was measured on a new machine under the operating conditions specified by the manufacturer.
Page 20 Delivery, interdepartmental transport, assembly and commissioning Notes on transport, installation, commissioning Improper transport, installation and commissioning is liable to accidents and can cause damage or malfunctions to the machine for which we do not assume any liability or guarantee. Transport the scope of delivery secured against shifting or tilting with a sufficiently dimensioned industrial truck or a crane to the installation site.
Page 21 Scope of delivery INFORMATION The milling machine is delivered pre-assembled. Check the milling machine immediately after delivery for transport damage, missing parts and loose locking bolts. Compare the scope of delivery with the attached packing list. Set-up and assembly 3.3.1 Installation site requirements The workplace for operating, maintenance and repair must not be restricted.
Page 22 Dimensions Centre of gravity MH25V | MH 25PV Translation of original instruction Version 1.0.7 - 2024-08-12...
Page 23 Only use the tool holders (e.g. drill chuck) which were delivered with the machine or which are offered as optional equipment by OPTIMUM. Only use tool holders in the intended admissible speed range. Tool holders may only be modified in compliance with the recommendation of OPTIMUM or the clamping device manufacturer. Cleaning and lubrication ...
Page 24 Electrical connection The machine is installed and ready to operate. Please verify if the type of current, voltage and protection fuse correspond to the values specified. A protective earth ground wire connection must be available. Main Fuse 16A. Due to the design, the leakage current is greater than 3,5 mA.
Page 25 3.7.1 Regulated drives in connection with residual current devices Speed-controlled drives are one of the standard equipment in machine and plant construction and perform various tasks. Compared to a simple motor, the electronic rectifiers or converters require some special features for the necessary safety measures for electrical safety. Depend- ing on the application, the use of a fault current protection device, differential current monitor- ing or insulation monitoring can make more sense.
Page 26 To avoid an operating fault, you need an AC/DC-sensitive ELCB. Be absolutely sure which leakage current security is necessary for dangerous body currents, as regulated in DIN VDE 0100 part 410, at your mains connection. 3.7.4 When the ELCB triggers Pulse current - sensitive ELCB type A...
Page 27 Power grid fluctuations and their destructive effect A prerequisite for grid stability is that the frequency and voltage are within the specified limits at every location in the power grid and at all times. Excessive deviations in voltage can only be remedied locally, i.e.
Page 28 Operation Safety The milling machine must only be operated under the following conditions: The milling machine is in proper working order.  The milling machine is used as intended.  The operating instructions are followed.  All safety devices are installed and activated. ...
Page 29 4.2.1 Control panel Item Designation Item Designation Spindle rotation ON Emergency stop button Spindle speed setting Spindle rotation OFF Control ON Spindle direction selection Switching the milling machine on  Switch on the master switch.  Unlock the emergency stop button. ...
Page 30 Inserting the tool 4.8.1 Quick-change clamping system The milling head is equipped with a collet chuck for tight- ening with pull stud BT30x45 °.  Tightening pull stud into the taper.  Clean the seat in the milling spindle.  Clean the cone of your tool.
Page 31 4.8.4 Quill clamp - MH 25PV CAUTION! Unintentional or possible loosening of the collet of the quick-change device at high milling forces. The spacer on the milling chuck guard prevents unintentional loosening of the tool. When milling, also use the quill clamp (1) to secure the quill firmly in one place.
Page 32 4.10 Clamping the workpieces CAUTION! Injuries can be caused by parts flying off. The workpiece must always be secured to the milling table in a machine vice, chuck or with another suitable clamping tool, such as clamping claws. 50 50 Img.4-6: Milling table 4.11...
Page 33 4.12 Selecting the speed The correct speed is an important factor for milling. The speed determines the cutting speed by which the cutting edges cut the material. The service life of the tool can be increased and the working result optimized by selecting the correct cutting speed. The ideal cutting speed basically depends on the workpiece and the tool material.
Page 34 Al alloy Steel Grey cast iron case-hard- Tool diameter 15 - 24 m/min 10 - 20 m/min ened 150 - 250 [mm] m/min Form mills Speed [rpm] 1194 - 1911 796 - 1592 11900 - 19000 955 - 1529 637 - 1274 9550 - 15900 796 - 1274 531 - 1062...
Page 35 Maintenance In this chapter you will find important information about Inspection  Maintenance  Repair  of the milling machine. ATTENTION! Properly performed regular maintenance is an essential prerequisite for operational safety,  failure-free operation,  a long working life of the milling machine and ...
Page 36 Inspection and maintenance The type and level of wear depends to a large extent on the individual usage and operating conditions. Any indicated intervals therefore are only valid for the corresponding approved conditions. Interval Where? What? How?   Safety check on page 14 Start of work, after every main- tenance or repair...
Page 37 Interval Where? What? How? Increased play in the milling head spindle can be reduced by adjusting the spindle nut. The spindle nuts are reset by reducing the thread flanks of the spindle nut with two take-up screws. After the reset, it is necessary to check if there is still smooth movement over the entire path, otherwise wear is considerably increased due to friction between the spindle nut and the spindle.
Page 38 Interval Where? What? How? Increased play in the milling table spindles can be reduced by resetting the spindle nuts. The spindle nuts are reset by reducing the thread flanks of the spindle nut by means of a take-up screw. After the reset, it is necessary to check if there is still smooth movement over the entire path, otherwise wear is considerably increased due to friction between the spindle nut and the spindle.
Page 39 Interval Where? What? How?  Turn the take-up screws of the gib clockwise. The gib is pushed further inward thus reducing the play in the guide rail.  Check the settings. The corresponding guide rail must be more easily movable but ensure stable guidance. Reset When necessary X axis...
Page 40 If repairs are carried out by qualified technical personnel, they must follow the indications given in these operating instructions. Optimum Maschinen Germany GmbH accepts no liability nor does it guarantee against damage and operating malfunctions resulting from failure to observe these operating instructions.
Page 41 Ersatzteile - Spare parts Ersatzteilbestellung - Ordering spare parts Bitte geben Sie folgendes an - Please indicate the following : Seriennummer - Serial No.  Maschinenbezeichnung - Machines name  Herstellungsdatum - Date of manufacture  Artikelnummer - Article no. ...
Page 42 Ersatzteilzeichnungen - Spare part drawings Fräskopf MH 25V - Milling head MH 25V Abb.6-1: Fräskopf ohne Pinolenhub - Milling head without quill stroke DE | EN MH25V | MH 25PV Originalbetriebsanleitung Version 1.0.7 - 2024-08-12...
Page 43 Fräskopf MH 25PV - Milling head MH 25PV Img.6-2: Fräskopf mit Pinolenhub - Milling head with quill stroke MH25V | MH 25PV DE | EN Version 1.0.7 - 2024-08-12 Originalbetriebsanleitung...
Page 44 MH 25V | MH 25PV - Fräskopf - Milling head Menge Grösse Artikelnummer Pos. Bezeichnung Description Qty. Size Item no. Bohrspindel Drill spindle 03338160101 Sicherungsring Retaining ring 042SR19W Passfeder Fitting key DIN 6885 - A 6 x 6 x 18 03338160105 für Flachriemen Riemenscheibe...
Page 45 MH 25V | MH 25PV - Fräskopf - Milling head Menge Grösse Artikelnummer Pos. Bezeichnung Description Qty. Size Item no. Spindel für Pinole Spindle for quill MH 25PV 03338155176 Locking lever on aluminium Sperrhebel an Aluminiumprofil 03338155177 profile Gehäuse Housing MH 25PV 03338155178 Federdeckel...
Page 46 Säule - Column 1-2 Abb.6-3: Säule - Column 1-2 DE | EN MH25V | MH 25PV Originalbetriebsanleitung Version 1.0.7 - 2024-08-12...
Page 47 Säule - Column 2-2 Abb.6-4: Säule - Column 2-2 MH25V | MH 25PV DE | EN Version 1.0.7 - 2024-08-12 Originalbetriebsanleitung...
Page 48 Teileliste Säule - Parts list column Menge Grösse Artikelnummer Pos. Bezeichnung Description Qty. Size Item no. Pos. 46 left side 03338160201 Führung Guide Pos. 46 right side 03338160201R Schmiernippel Lubrication cup 0340114 Spindelmutter Spindle nut 03338160203 Halter Holder 03338160204 Innensechskantschraube Socket head screw ISO 4762 - M8 x 25 Spindel...
Page 49 Frästisch - Milling table 1-2 Abb.6-5: Frästisch - Milling table 1-2 MH25V | MH 25PV DE | EN Version 1.0.7 - 2024-08-12 Originalbetriebsanleitung...
Page 50 Frästisch - Milling table 2-2 Abb.6-6: Frästisch - Milling table 2-2 DE | EN MH25V | MH 25PV Originalbetriebsanleitung Version 1.0.7 - 2024-08-12...
Page 51 Teileliste Frästisch - Parts list milling table Menge Grösse Artikelnummer Pos. Bezeichnung Description Qty. Size Item no. Führung Guide 03338160301 Tischführung Table guide 03338160302 Lagerbock Bearing block 03338160303 Skalenring Scale ring 03338160304 Lagerbock Bearing block 03338160305 Innensechskantschraube Socket head screw ISO 4762 - M8 x 16 Innensechskantschraube Socket head screw...
Page 52 Fräsfutterschutz - Milling chuck cover Teileliste Fräsfutterschutz - Parts list milling chuck cover Menge Grösse Artikelnummer Pos. Bezeichnung Description Qty. Size Item no. Rändelschraube Knurled screw 033381604 01 Halterung Fixture 033381604 02 Mikroschalter Microswitch 033381602B1 Platte Plate 033381604 04 Alu- Profil Aluminium profile 03338160405 Schraube...
Page 53 Bedienpanel - Operating panel Teileliste Bedienpanel - Parts list operating panel Menge Grösse Artikelnummer Pos. Bezeichnung Description Qty. Size Item no. Halterung Support 03338155501 Bedienpanel komplett Operating panel complete 03338155502 Not-Halt Schalter Emergency stop button 0460058 Knipf Potentiometer Potentiometer knob 03338160505 MH25V | MH 25PV DE | EN...
Page 54 Maschinenschilder - Machine labels Abb.6-7: Maschinenschilder - Machine labels Ersatzteilliste Maschinenschilder - Spare part list machine labels Menge Grösse Artikelnummer Pos. Bezeichnung Description Qty. Size Item no. Frontschild Front lable MH 25V 03338155L01 Frontschild Front lable MH 25PV 03338156L01 Maschinenlabel Machine lable MH 25V 03338155L02...
Page 55 Schaltplan - Wiring diagram MH25V | MH 25PV DE | EN Version 1.0.7 - 2024-08-12 Originalbetriebsanleitung...
Page 56 Teileliste elektrische Bauteile- Parts list electrical parts Menge Grösse Artikelnummer Pos. Bezeichnung Description Qty. Size Item no. Steuerplatine Control board 033381602A1 Sicherung Fuse Ventilator Schaltkasten Fan switch box SSM15 - A2 - 1.5-15/ 90, Senlima Electric Motor, 1.5 KW ; 400/ Spindelmotor Spindle motor 230V, 3.5 / 6.1A ;...
Page 57 Malfunctions Milling machine malfunctions Cause/ Malfunction Solution possible effects  Milling machine cannot be • Power-on sequence not observed. • Resetting an emergency stop switched on situation on page 29.  • Power failure, Restoring readi- ness for operation on page 29 ...
Page 58 Appendix Copyright This document is protected by copyright. All derived rights are reserved, especially those of translation, re-printing, use of figures, broadcast, reproduction by photo-mechanical or similar means and recording in data processing systems, either partial or total. Subject to technical changes without notice. Terminology/Glossary Term Explanation...
Page 59 Non reproducible software errors  Any services, which OPTIMUM GmbH or one of its agents performs in order to fulfil any addi- tional warranty are neither an acceptance of the defects nor an acceptance of its obligation to compensate. Such services neither delay nor interrupt the warranty period.
Page 60 Example: not stackable - do not stack further packing case on top of the first one. Consult Optimum Maschinen Germany GmbH if the machine and accessories are stored for more than three months or are stored under different environmental conditions than those spec- ified here.
Page 61 8.7.1 Decommissioning CAUTION! Disused equipment must be decommissioned in a professional manner in order to avoid later misuse and danger the environment or persons. Disassemble the machine if required into easy-to-handle and reusable assemblies  and component parts. Dispose of machine components and operating fluids using the intended disposal ...
Page 62  Any experiences with the lathe which might be important for other users  Recurring malfunctions  Optimum Maschinen Germany GmbH Dr.-Robert-Pfleger-Str. 26 D-96103 Hallstadt, Germany Fax +49 (0) 951 - 96 555 - 888 email: info@optimum-maschinen.de MH25V | MH 25PV Translation of original instruction Version 1.0.7 - 2024-08-12...
Page 63 EC Declaration of Conformity according to Machinery directive 2006/42/EC, Annex II 1.A The manufacturer / distributor Optimum Maschinen Germany GmbH Dr.-Robert-Pfleger-Str. 26 D - 96103 Hallstadt, Germany hereby declares that the following product Product designation: Hand-controlled milling machine Type designation:...
Page 64 Index Spare parts Hotline ..........41 Specialist dealer ...........40 Assembly .............. 21 Speeds ..............18 Spindle seat ............17 Cleaning and lubrication ........23 Storage and packaging .........21 Commissioning ............. 23 Swivelling the drill-mill head ......32 Cooling lubricants ..........39 Copyright .............. 58 Technical data Customer service ..........

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