MDR
MDR
Overview of MDR Series Automatic Tapping Machines
The document provides detailed technical specifications, features, and operational descriptions of the MDR series automatic tapping machines, including models MDR12, MDR16, MDR22, MDR32, and MDR32 with gear-box drive. These machines are designed for variable speed tapping operations with different spindle speeds, motor powers, and configurations suitable for various industrial applications.
1. Machine Models and Speed Variations
- MDR12 and MDR16: Variable speed drives with spindle speeds ranging from 140 to 900 rpm (MDR12) and 275 to 1785 rpm (MDR16), both powered by 1.1 kW motors.
- MDR22: Variable speed drive with spindle speeds from 130 to 675 rpm, motor power 1.47 kW.
- MDR32: Gear-box drive with selectable speeds (64, 105, 128, 185, 210, 300, 370, 500, 600, 860, 1000, 1720 rpm), motor power 2.2 kW.
2. Key Features and Controls
- Reversing Sensitive Lever: A manually operated lever for sensitive reversing control, enabling chip breakage and high precision, especially for fine threads and difficult materials.
- Speed Variation Levers: Controls for adjusting spindle speed smoothly or via gear changes depending on the model.
- Cycle Selector Switch: Five-position selector for different operational modes: test impulse cycle, manual cycle with sensitive lever, single work cycle, timed work cycle, and continuous work cycle.
- Coolant System: Nebulized lubrication and cooling system to enhance machining quality and tool life.
- Emergency and Cycle Controls: Emergency stop button, cycle start/end indicators, and timers for precise operation management.
3. Mechanical and Dimensional Specifications
| Model | Spindle Speed (rpm) | Motor Power (kW) | Spindle Taper (mm) | Quill Stroke (mm) | Table Dimensions (mm) | Column Diameter (mm) | Distance Spindle-Column (mm) | Distance Spindle-Table (min-max, mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| MDR12 | 275 - 1785 | 1.1 | CM2 | 60 | 315 x 350 / 250 x 350 | 98 | 205 | 210 - 600 / 45 - 760 | 140 - 150 |
| MDR16 | 140 - 900 | 1.1 | CM2 | 60 | 315 x 350 / 250 x 350 | 98 | 205 | 210 - 600 / 45 - 760 | 250 - 260 |
| MDR22 | 130 - 675 | 1.47 | CM3 | 60 | 315 x 350 / 250 x 350 | 98 | 205 | 210 - 600 / 45 - 760 | 200 - 210 |
| MDR32 | 64 - 1720 (gear-box) | 2.2 | CM4 | 60 | 300 x 700 / 600 x 345 | 123 | 300 | 250 - 600 / 50 - 750 | 310 - 380 |
4. Machine Configurations and Mounting Options
- Available in bench (Banco), pedestal (Piedistallo), and column (Colonna) mounting styles to suit different workshop layouts.
- Dimensions and weights vary according to model and mounting type, with overall heights ranging from approximately 1485 mm to 2645 mm.
5. Operational and Safety Features
- Spindle RPM digital read-out available for variable speed models.
- Spindle quill stroke of 60 mm standard across models.
- Spindle taper sizes vary by model to accommodate different tooling.
- Safety guards for spindle protection (notably on MDR32).
- Emergency stop and cycle control buttons for operator safety and process control.
6. Additional Notes
- The company reserves the right to make modifications without prior notice.
- Multilingual descriptions (Italian, French, English, German) are provided for international users.
- Contact information for Serrmac International S.r.l. is included for official dealer inquiries.
Summary
The MDR series automatic tapping machines offer versatile, variable-speed tapping solutions with precise control features, suitable for a range of threading tasks on steel materials. The series includes models with electronic variable speed drives and gear-box drives, equipped with sensitive reversing levers, multiple cycle modes, and integrated coolant systems. The machines are designed for flexibility in mounting and operation, ensuring adaptability to various industrial environments.
Catalog excerpts
Maschiatrici automatiche a velocità variabile Automatic Tapping machines with variables speeds Taraudeuses automatiques à vitesse variable Automatische Gewindescheidmaschinen mit Geschwindigkeitsregler Leva sensitiva ad inversione Levier sensitif d’inversion Reversing sesitiv lever Sensibilinversionshebef * MDR 12 Variatore di Velocità Variateur de vitesse Variable speeds drive Stufenloser Drehzahlregler 275 ÷ 1785 1/min kW1,1 Variatore di Velocità Variateur de vitesse Variable speeds drive Stufenloser Drehzahlregler 140 ÷ 900 1/min kW1,1 Da banco banch model d’etabli tisch modellen
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22 Maschiatrici automatiche a velocità variabile Automatic Tapping machines with variables speeds Taraudeuses automatiques à vitesse variable Automatische Gewindescheidmaschinen mit Geschwindigkeitsregler Leva sensitiva ad inversione Levier sensitif d’inversion Reversing sesitiv lever Sensibilinversionshebef MDR 22 Variatore di Velocità Variateur de vitesse Variable speeds drive Stufenloser Drehzahlregler 130 ÷ 675 1/min kW1,47
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32 Maschiatrice automatica a cambio ingranaggi Automatic Tapping machines with gesr-box drive Taraudeuses automatiques à boîte de vitesses Automatische Gewindescheidmaschinen mit Schaltgetriebe Leva sensitiva di inversione a comando manuale per filettature con rompitruciolo nei materiali difficili per passi fini e molto precisi. Levier sensitif pour le taraudage avec debourage de matériaux difficiles au pas petit et trés précis. Manually-operated sensitive lever that enables the cip breakage and high-precision also on small threads. Sensibilhebel dass beim handbetaetigung ermoeglicht die spaene...
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- Impianto refrigerante
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Mandrino portamaschi Mandrin porte taurauds Screw-taps chuck Gewindeboher Spannfutter Patrona Patrone Lead-screw Leitpatrone Contagiri digitale mandrino per variatore Compte tours digitai pour variateur Spindle RPM digitaI read-out Spindel U/Min Digitalanzeiger Dispositivo di lubrorefrigerazione Dispositif de nebulisation Synchronized spraying nozzle Nebulisatoreinrichtung Impianto refrigerante Arrosage Coolant system Kuehlmittelanlage
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La ditta si riserva il diritto di apportare senza alcun preavviso qualsiasi modifica che ritenga necessaria. SERRMAC INTERNATIONAL S.r.l. se reserve le droit d’effectuer toute modification sans preavis. The Company SERRMAC INTERNATIONAL S.r.l. has the right to make the needed modifications without any notice. Die Firma SERRMAC INTERNATIONAL S.r.l. ist berechtig, auch wahrend der Laufzeit von Auttragenertorderliche Konstruktions- und MaBanderungen vorzunehmen. Rivenditore autorizzato/Official dealer SERR SERRMAC INTERNATIONAL S.r.l. Via 1° Maggio, 2 - 33070 Budoia (PN) - Italy Tel. +39 0434 671021 www.serrmac-international.it [email protected]...
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