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| CAPACITY |
| Swing over bed |
330mm |
| Swing over cross slide |
210mm |
| Height of centres |
167mm |
| Swing in gap |
480mm |
| Gap width from faceplate |
117mm |
| Bed length |
635mm/
1000mm |
| Distance between centres |
635mm/1000mm |
| |
| SPINDLE |
| Spindle nose |
D1 - 4 Camlock |
| Taper in spindle nose bush |
3 MT |
| Spindle bore |
40mm |
| Maximum spindle speed |
2500 rpm |
| Spindle speed ranges |
|
| High |
40 - 2500 rpm |
| Maximum spindle motor power |
2.2 kW |
| Number of Imperial Pitches |
52 |
| Range of Imperial Pitches |
2 - 56 TPI |
| Number of Diametral Pitches |
18 |
| Range of Diametral Pitches |
8 - 56 DP |
| Number of Metric Pitches |
45 |
| Range of Metric Pitches |
0.2 - 14mm Pitch |
| Number of Module Pitches |
18 |
| Range of Module Pitches |
0.3 - 3.5 MOD |
| |
| TAILSTOCK |
| Tailstock quill diameter |
42mm |
| Tailstock quill taper |
No 3 MT |
| Tailstock quill travel |
110mm |
| |
| BED |
| Cross slide width |
140mm |
| Cross slide travel - X axis |
190mm |
| Top slide width |
82mm |
| Travel of top slide |
92mm |
| |
| SPACE AND WEIGHT |
| Overall machine length |
1750mm / 2130mm |
| Overall machine width |
940mm |
| Overall machine height |
1420mm |
| Overall machine weight |
710kg / 790kg |
NB: Illustrations and specifications are not binding in detail and are subject to modification and improvement without notice. |
The M300 centre lathe has all the characteristics that have established Harrison Lathes among the world�s finest. High quality design and manufacture, reliable performance, long life and standards of safety meeting all international and including the latest European CE requirements, make the machine an outstanding asset in any workshop.
Compact and sturdy, the M300 has features for easy control of its comprehensive capabilities. It has the power to deal with heavy metal removal, at the same time offering precision for fine tolerance turning. Its modern format has been carefully planned for accessibility and maximum operator convenience, with routine servicing requirements kept to a minimum.
Straight and gap bed versions are available with left or right hand apron handwheels.
Features
- Spindle speeds are easily, quickly and safely selected by two push and turn controls.
- Smooth power transmission through a twin vee belt drive and induction hardened and ground headstock gearing ensure quiet running.
- Camlock nose provides fast and simple change over of spindle workholding equipment.
- Large saddle and slide bearing areas ensure precision and long life.
- Ergonomically designed with easy and positive apron controls.
- The combination of the box section cast iron bed and rigid steel base provides an integrated structure with strength and vibration damping characteristics.
- Separate hardened and precision ground ways for saddle and tailstock provide resistance to wear for long lasting accuracy.
- Gated 3rd shaft lever with No-Volt relay to protect against restart.
- Rapid action foot controlled brake with electrical disengagement.
- Safety interlock "Wrap Around" chuckguard.
- Safety protection of the leadscrew by an adjustable torque limiter and of the feed shaft by a trip mechanism in the apron.
- Universal gearbox enables quick and easy selection of metric or imperial feed rates and thread pitches.
- Deep section top slide with dovetail guides and gib strip adjustment has unrestricted swivel.
- Cross slide is full length and dovetailed to accept accessories at rear. Cross slide nut has an adjustable anti backlash feature.
- Full length fixed and rigid leadscrew cover.
- The tailstock quill is marked in both imperial and metric graduations and has cam operated locking.
- Electrical housing is sealed and isolator interlocked
Additional accessories and options |
A wide selection of accessories and attachments, including taper turning, hydraulic copying, chucks, collets, faceplates, tooling, steadies, constant surface speed (CSS) and more available. Please contact Harrison or your nearest Harrison distributor for further details. |
Additional Quick Change Toolholders |
Used for multi tool set-ups, maintaining offset radius or to facilitate tool pre-setting operations.
Maximum tool sections as 4 Way Hand Indexing Toolpost |
Collet Sets |
Set of 12 collets. Multisize 'E' type. |
| Capacity |
| 1.6mm (1/16") to 38mm (1 1/2") |
Coolant Pump and Coolant Tank |
A flexible saddle mounted pipe allows coolant to be directed at the cutting point.
Electric coolant pump and tank, hose and fittings. |
| Tank Capacity |
| 18 litres (4 gals) |
Drawbar Attachment - 'Acro Grip' |
A hand lever operated collet closing mechanism. Equally suited for single components or batch work, ensuring consistent accuracy and repeatability. |
| Dia. capacity |
| 27mm (1 1/16" ) |
Drawbar Collets |
5C Round Collets 1/6" - 3/32" - 1/8" - 2mm - 2.5mm
5C Round Collets 3mm (9/64") to 27mm (1 1/6") in
0.5mm (1/64") steps
For use with 'Acro-Grip' Drawbar Attachment |
Drill Chuck |
Heavy duty chuck for use in the tailstock or taper bore of quick change toolpost. |
| Morse Taper |
Capacity |
| No.3 |
12.7mm (1/2") |
Face Plates |
Made from close grained, high quality cast iron. Each clearly marked for safety with permitted maxiumum speed. |
| Dia. |
| 300mm (12") AND/OR 460mm (18") |
Independent Chuck - 4 Jaw |
For gripping rectangular material and enables components to be turned eccentrically. |
Key Operated Collet Chuck |
|
Low Volt Machine Lighting |
A double jointed arm on a swivel base for directing light where required.
25 Volt, 60 Watt, 1 Phase, 50 Cycles, AC Supply. |
Quick Change Toolpost |
A dowel pin accurately positions the front face of this unit parallel to the lathe axis when the swivel slide is also in its parallel position. The toolpost is made from hardened and ground steel throughout.
Maximum tool sections as 4 Way Hand Indexing Toolpost |
Rotating Tailstock Centre |
Quill mounted centre support for long or heavy components, allowing higher cutting speeds than conventional fixed centre support.
General purpose type with No.3 Morse taper
AND/OR
Heavy duty type with No.3 Morse taper |
Saddle Stops |
Fast accurate longitudinal positioning without damage to lathe. Saddle can move under feed until pre-set stop is contacted, then feed automatically disengages.
Single AND/OR 5 position stop for saddle.
Torque limiter operates to arrest movement. |
Self Centering Chuck - 3 Jaw |
Grips cylindrical components with or without tailstock centre support. The component is automatically held on the centre line of the machine with the three point grip providing the drive. |
| Dia. chuck |
| 160mm (6 1/4") |
Stationary Steady - 3 Point |
Invaluable in producing long or slender components. Rigid body casting combining with fine adjusting screws and vee positioning on bedways ensure excellent repeatability characteristics. |
| Dia. capacity |
Pad type |
| 100mm (4") |
Plain |
Tailstock Handwheel Dial - Metric or Inch |
Allows precision use of the tailstock, especially when drilling or reaming.
Graduated in divisions of 0.1mm (Metric version) or 0.005" (Inch version). |
Travelling Steady - 2 Point |
Mounts on the leading face of the saddle to give maximum support to the workpiece. Robust construction combats vibration. |
| Dia. capacity |
Pad type |
| 50mm (2") |
Plain |
|
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