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GENERAL CATALOGUE Speed variators

GENERAL CATALOGUE Speed variators
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GENERAL CATALOGUE Speed variators

Product catalog summary
Overview: This document serves as a comprehensive catalogue for the K2, K4, and K5 series speed variators, covering power ranges from 0.37 to 4 kW. It includes selection guides, dimensions, technical specifications, and compliance information.
Selection and Dimensions: The document provides detailed selection criteria and dimensional data for the K2 (0.37-0.75 kW), K4 (1.1-1.5 kW), and K5 (2.2-4 kW) series. Each series has specific pages dedicated to selection and dimensions.
Technical Features: Key features include bidirectional rotation, available flanges, speed control options, and various mounting positions. The variators are designed with aluminium housing, centrifuged bronze bushings, tool steel pistons, and Freudenberg seals.
ATEX Directive Compliance: The document outlines compliance with the ATEX directive for use in potentially explosive environments, detailing classification and necessary accessories.
Working Principle: The variators operate on a hydrostatic transmission principle, involving a primary variable displacement pump and a secondary constant displacement pump. Speed regulation is achieved by adjusting the primary unit's eccentricity.
Service Factors and Selection Guide: Tables are provided for calculating service factors based on working conditions such as temperature, shock loads, and operational hours.
Maintenance and Spare Parts: Guidelines include oil change intervals and lists of spare parts for different series. Variators are supplied without oil, requiring customer filling.
Key Specifications: Power range is 0.37-4 kW, with a speed range of 1450-0-1450 rpm and torque control. High starting torque and adjustable speed with motor off are highlighted.
Recommendations: For applications with wide speed ranges or high torque requirements, using a variator with a gearbox is recommended. Compliance with service factors is crucial for optimal performance and longevity.
Safety Features: Includes adjustable safety valves to prevent damage from excessive torque.
Modular Mounting System: The variators are modular, allowing customization with different input, output, feet, and speed control kits.
Speed Control Options: Options include handwheel, lever, and electric controls, with additional controls available in the 'Applications' catalogue.
Compliance and Standards: Compliance with the 2006/42/EC Directive is ensured, with a requirement for final machine compliance before use.
Lubrication and Maintenance: Specific oil types are recommended based on ambient temperature, with warnings against using synthetic oil ATF DEXRON.
Extreme Temperature Considerations: Consultation with Var-Spe's technical department is advised for temperatures above 40°C or below -15°C.
Mounting Positions: Variators can be installed in various positions, with warnings against ceiling-mounted feet.
Handwheel Control Specifications: Allows precise speed regulation across a full range, with output speed adjustable in both rotational directions.
Remote Electric Control: Enables speed adjustment from zero to maximum RPM using a push-button interface.
Torque Control System: Functions as a torque limiter, adjustable via screws with lock nuts.
Noise and Temperature Considerations: Guidelines are provided for maintaining optimal performance, including the use of appropriate oils and potential cooling systems.
Input Speed and Technical Features: Maximum input speed is 1750 RPM, with recommendations against using 2-pole motors.
Specifications: Detailed specifications for variator sizes, including weight, motor power, input and output flange types, and oil quantity requirements.
Radial and Axial Loads: Guidelines for calculating radial and axial loads on variators and gearboxes are provided.
Installation and Safety Guidelines: Emphasizes smooth coupling, alignment, and protective measures for safety and equipment integrity.
Operational Guidelines: Includes starting procedures, input rotation options, and compliance requirements.
Storage and Handling Instructions: Recommendations for maintaining efficiency during storage, including lubrication and oil management.
Spare Parts Lists: Detailed lists for various kits associated with the variators, ensuring precise identification and replacement of parts.
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Catalog excerpts

GENERAL CATALOGUE Speed variators-1

GENERAL CATALOGUE Speed variators

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GENERAL CATALOGUE Speed variators-2

CONTENTS AND INDEX / SOMMARIO E INDICE MAIN SUBJECTS / ARGOMENTI PRINCIPALI 0.37-4 kW PI02-PI04-PIO5/MI02-MI04 SERIES (split units) Selection guide/Guida alia selezione 4 Atex Directive/Direttiva Atex 5 Main features/Caratteristiche principali 6 Working principle/Principio di funzionamento 8 Modular mounting system/Sistema di montaggio modulare 9

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GENERAL CATALOGUE Speed variators-3

INDEX / INDICE Mounting position/Posizioni di montaggio 13 Selection tables guide/Guida tabella selezioni 15 Shafts loads/Carichi sugli alberi 30 Speed controls/Comandi di regolazione velocita 31 Main features/Caratteristiche principali 34 Working principle/Principio di funzionamento 36 Mounting position/Posizioni di montaggio 37 SELECTION AND DIMENSIONS SIZE 15 (4 KW) 38 SELECTION AND DIMENSIONS SIZE 16 (7.5 KW) 40 SELECTION AND DIMENSIONS SIZE 16B (11 KW) 42 SELECTION AND DIMENSIONS SIZE 17 (15 KW) 44 SELECTION AND DIMENSIONS SIZE 17B (22 KW) 46 Shafts loads/Carichi sugli alberi 48 Speed controls/Comandi...

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GENERAL CATALOGUE Speed variators-4

GUIDA ALLA SELEZIONE / SELECTION GUIDE Nella corretta selezione del VARIATORE o MOTOVARIATORE è opportuno rispettare le seguenti indicazioni per garantire un funzionamento ottimale ed una economia di esercizio a lungo termine. Determinare la potenza teorica o il momento torcente necessario all’azionamento della macchina utilizzatrice. When selecting the suitable VARIATOR or MOTOR-VARIATOR it is important to comply with the following directions in order to ensure an optimum working and longterm minimum running cost. Determine theoretical power or torque required by driving machine. P [kW] Output...

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GENERAL CATALOGUE Speed variators-5

DIRETTIVA ATEX / ATEX DIRECTIVE VAR-SPE può fornire i propri variatori di velocità destinati all’utilizzo in ambiente pericoloso e potenzialmente esplosivo, ai sensi della direttiva 94/9/CE (Atex 100a) relativa alla libera circolazione dei prodotti cui essa si applica all’interno del territorio dell’UE; i variatori risultano muniti dei seguenti accessori: Var-Spe can supply his own variators destined to working in dangerous and explosive environments in accordance with European directive 94/9/CE (ATEX 100a); variators are provided with following devices: Per Gruppo II Categoria 3 classif. ExII3GDIP65T135°C...

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GENERAL CATALOGUE Speed variators-6

Caratteristiche tecniche dei variatori K2-K4-K5 Technical features of K2-K4-k5 variators POTENZA/POWER: 0.37-4 KW CONTROLLO VELOCITA’ SPEED CONTROL Ampia varietà di comandi, vedere catalogo applicazioni Wide range of controls, see the applications catalogue INDICATORE VELOCITA’ SPEED INDICATOR Disponibile Available ENTRATA/INPUT Rotazione bidirezionale Disponibili flange B5 e B14. Rotation on both directions. B5 and B14 available flanges. CONTROLLO COPPIA TORQUE CONTROL Regolabile Adjustable PIEDINI / FEET Removibili Removable USCITA/OUTPUT Bidirezionale Disponibili Flange B5 e B14 Both directions...

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GENERAL CATALOGUE Speed variators-7

Full flexibility for distributors/Flessibilità totale per i distributori Motor (4 poles) Motore (4 poli) Previous variator size Tipo variatore precedente NEW variator size NUOVO tipo variatore Riempire con olio ! Fill with oil Reliability and long life/Affidabilità e lunga vita The variator needs a simple maintenance: change the oil every 2000 hours. Il variatore necessita di una manutenzione semplificata: cambiare l’olio ogni 2000 ore High Quality machining and parts/Qualità elevata lavorazioni e parti Housing Cassa Aluminium, impregnated to prevent leaks. Alluminio, impregnato per evitare perdite....

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GENERAL CATALOGUE Speed variators-8

Principio di funzionamento Working principle Il variatore di velocità VarSpe funziona sul principio della trasmissione idrostatica, ed è costituito essenzialmente da una pompa idraulica a pistoni radiali a cilindrata regolabile (unità primaria) e da una pompa a cilindrata fissa (unità secondaria). Var-Spe infinitely variable hydraulic gears work according to the principle of hydrostatic transmission. They essentially consist of an hydraulic, radial piston variable displacement pump (primary pump) and a constant displacement pump (secondary pump). Entrambe le unità, primaria e secondaria, sono...

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GENERAL CATALOGUE Speed variators-9

SISTEMA DI MONTAGGIO MODULARE/MODULAR MOUNTING SYSTEM Il variatore K2-K4-K5 è un prodotto modulare: si sceglie il modulo base di potenza e poi si aggiungono i vari kit di entrata, di uscita, dei piedini ed il sistema di regolazione della velocità. The K2-K4-K5 variator is a modular product: you choose the power modular base and then add different kits of input, output, feet and speed control. K2-K4-K5 MODULAR SYSTEM Modulo Base di Potenza Power modular base Comando velocità Speed control Description Volantino/Handwheel Leva/Lever Elettrico/Electric Per altri comandi vedi catalogo “Applicazioni”....

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GENERAL CATALOGUE Speed variators-10

CODIFICA / HOW TO ORDER K2K2 0,75 KW SELEZIONE / DIMENSIONS 0.37 KW DIMENSIONI SELECTION Size (modular base) Type Forma costruttiva Grandezza (base modulare) Speed control Comando di velocità K2 With input flange Con flangia entrata 000 on right side/ a destra 100 on left side/ a sinistra See available speed control at page 31 Vedi i comandi disponibili a pag.31 Male input shaft Entrata maschio Variator without feet Variatore senza piedi Example of codification/Esempio di codifica: 11.K2/000/A2.8.71B5.14 11: With input flange/con flangia entrata K2: Size of variator/ tipo variatore 000: handwheel...

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GENERAL CATALOGUE Speed variators-11

CODIFICA / HOW TO ORDER K2 0.37 KW DIMENSIONI / DIMENSIONS Devices Input flange Output flange Output Shaft Flangia entrata Flangia uscita Albero uscita Speed Sensor Sensore velocità Code Old type A richiesta possiamo consegnare i nostri prodotti secondo le Normative Atex, vedi pag.5 Per le condizioni di fornitura vedi pag. 71 For supply conditions see pag. 71 On request we can deliver our products according to the Atex Directive, see pag.5 Prima di ordinare vedere la “check list” e le avvertenze a pag. 68 Before to order, see the “check list” and caution notes at page 68 Il variatore viene fornito...

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