Brigeport ONE milling, drilling and boring machine

Bridgeport SERIES ONE

Catalogue No 208/E4
SERIES ONE FM 1907
ISO 9001 / BS5750 Pt1

EXCEPTIONAL VERSATILITY
HIGH PRODUCTIVITY
POWERFUL METAL REMOVAL

The Bridgeport Series One is a milling drilling and boring machine that with the combination of head ram turret and table movements can machine a workpiece longer and wider than its own table and from any angle

With the extensive range of attachments available the machine can virtually become a workshop in itself and can readily accommodate changes in the type of work

Maximum strength and rigidity under cutting is ensured by the robust construction of the major castings extra wide slideways twin knee column locks and twin table saddle locks providing years of accurate and economical production

The Bridgeport Series One universal turret milling machine is a classic in its own right With over one third million produced to date it is unquestionably the world’s most popular milling machine

Fifty years of unrivaled experience in turret mill manufacture combined with continuous development ensures the very best value for money in quality performance and reliability

Machine shown with optional Perspex splash guard
Cover photo by courtesy of NEWBOULD ENGINEERING OADBY LEICESTER

FM1907 ISO 9001 / BS5750 Pt1

MACHINE FEATURES

Milling heads with a wide spindle speed range
R8 Taper tooling
Twin table saddle locks
Extra wide slideways
Vertical milling drilling and boring machine
Twin knee column locks
Unique ram clamp
Turret setting scale
Ram setting scale
Quick release adjustable micro depth stop
Optional two axis digital read out
Work holding accessories
Optional power feed rapid traverse
Optional shaping and slotting head

THE BRIDGEPORT LEGACY

The original Bridgeport turret mill was designed in 1938 by Magnus Wahlstrom and Rudolph Bannow two Swedish engineers living in America They found that conventional machines could not utilize the full capabilities of the milling drilling and boring head they had been building since 1928 Their new design provided a totally new concept in milling machines

The versatility of this new machine allowed the milling head to be moved into practically any position relative to the table and workpiece Not only could it machine an area larger than the table but by rotating the head through 180 degrees a second head mounted on the opposite end of the ram could be used This permitted milling and boring operations to be followed by shaping and slotting without disturbing the original setup

It was a brilliant concept and this versatility has remained one of the hallmarks of the Bridgeport Series One

For certain photographs in this leaflet the machine cutter guard has been removed to present the application with greater clarity Cutter guards must be fitted at all times when the machine is in operation

STANDARD DEMONSTRATION CUT

Three inches per minute

The standard demonstration cut of the Bridgeport Series One BR2J2 is
Metal removal volume twenty eight cubic inches per minute
Material thirty ton tensile mild steel
Cutter four tooth end mill
Spindle speed twelve hundred revolutions per minute
Feed rate seventy five millimeters per minute three inches per minute
Depth of cut twenty five millimeters one inch
Width of cut fifteen millimeters five eighths inch
Type 2J2 Head

IT S TOUGHER THAN YOU THINK MILLING HEADS
The very high quality of the component parts and assembly procedures enables extraordinarily heavy cuts to be made in relation to the power supplied. The type 2J2 milling head is powered by a 2 4kW 3hp motor with infinitely varíable spindle speeds from 50 to 3750 rpm, whilst the 3/4-1V2kW 1-2hp motor of theType J heads providesl5 changes of speed in the range
67 to 4600 rpm.
The quill is hard chrome plated, accurately ground and lapped to fit the honed bore in the main casting. The sensitive hand feed lever and slow feed handwheel are readily detachable for operator convenience. There are three rates of power feed in both dírections.
Maximum productivíty ís assisted by a quíck release depth stop for adjusting quill depth. When setting the feed disengagement position for accurate boring and míllíng operations, the micro- adjuster can be moved rapidly to the approxímate positíon followed by minimal adjustment for fine positioníng.
The design of the positive quill clamp prevents over-tíghtenìng and risk of quìll distortion, while a slipping clutch mechanism provides protectíon from overload.
SUPERIOR DESIGN AIR EXHAUST BELT HOUSING MOTOR
BELT HOUSING AND MOTOR SUPPORT REVERSE FLOW AIR COOLING
The belt housing and motor support may be swivelled through The unique and patented air coolíng system of the 2J2 head 360`, enabling the head to be used in posítions where the housíng ensures that the heat build-up in the spíndle bearings, belt and oг support might otherwise foul. quil is kept to an absolute minímum. This is achíeved by the air being drawn into the housing past the spindle bearings by the rotation of the drive belt and finally emitted out of the exhaust atthe top. Dístortíon is avoided by maintaining the operating temperature to within 11 C 20 F of ambient, resulting in
increased belt and bearíng life and maintained accuracy.
SPINDLE AND R8 TAPER
The R8 spindle taper was specíally designed for the Bridgeport Series Oпe and facílitates the interchangeability of a wide range of spindle toolíng. 1t is now accepted as a standard by leading  spindle and tool chuck manufacturers  over the world. The majority of the work carried out on the Series Oпe is end milling using collets, which with the R8 taper can be located directly ínto the spindle nose. Thís reduces the distance between
the spindle bearíng and the end of the cutter to a minimum.
The quick actíng spindle brake may be locked on to facilitate rapid tool changing.

SUPERIOR DESIGN RAM CLAMP
The ram runs in vee slideways and is moved backwards and forwards through a rack and pinion mechanísm to enable accurate positioning. The Bridgeport patented method of clampíng the ram is to expand the ram into the slídeways on top of the turret. This method gives a wider area of contact for a very rígid joint, so increasing stiffness and reducing vibration.

CENTRALISED LUBRICATION
Correct lubrication gives longer accurate lífe to the machine,reducing maintenance and making the machine more sensitive and easier for the operator to work. A centralised system lubricates slideways, leadscrews and the bevel gears of the knee elevating mechanism. Operation by a single lever saves the operator time and makes it easy to give each moving part the correct amount of oil, pre-determined by a series of inetering
valves built into the system.
EASE OF OPERATION
HARD CHROME SLIDEWAY OPT10N
The manufacturíng specifícation includes the option of hard chrome plated slideways to gíve extra years of accurate life. The special Poeton-Tíbon precísion process enables the hand scraped  slídeway to be hard chrome plated to a uniform thíckness of approximately The surfaces plated are:
1. Top of cross slíde - longítudinal movement.
2. Top of knee - cross movement.
З. Cross slide to table gib.
Poeton chrome platíng becomes an integral part of the base casting and since heat is not involved in the process, it causes no stresses or straíns. The slightly porous deposít provides an idea4 lubricant absorbing surface with an extremely 1ow co-efficient of friction and also gíves corrosion resistance to the slideways.
Hardness exceeds Rockwell , giving outstanding wear qualities.
SUPERIOR CAPACITY 
The highlysuccessful Brídgeportconceptof utilizing the combined movements of table cross-slide, ram and turret, allows a component  considerably larger than its own table to be machíned without the  necessìty of costly re-setting procedures. The Seríes One table size of 1065mm x 230mm 42 x 9 has proved to be more than adequate for a vast number of jobs that might otherwíse have requíred a considerably  arger and more expensíve machine.
BRIDGEPORT UNIT HEADS
.Whilst the Type J , 2J2 and E heads are prímaríly íntended for use on the Bridgeport machine, their independent motor dríve ìaгa ;
makes them suitable for use on other conventíonal milling machines and special purpose tools.
TYPE `E SLOTTING AND SHAPING HEAD OPT10N
The type E slotting and shaping head mounted on the rear of the /a to 4 x /a , adjustment beíng made simply by slackeníng
ram is an extremely useful addition. The swivelling turret a nut and turning the indicator 
enables the E head to be quickly and easíly swung into position
to slot or shape a previously machíned component without Cutting tools can be located vertically or horizontally n the tool
dísturbing the original set-up. The swivel adaptor enables the holder, whích incorporates a clapper box for tool relíef on the
head to work vertically or at any angle. Driven by its own /4kW return stroke. The clapper box can be locked when not
1/ hp motor, it has six rates of oscillation from 60-350 strokes required. Capacity for horizontally mounted tools is 9mm 3/в
per mínute. The stroke ís adjustable from 3-100mm in 3mm steps and for vertically mounted tools is 15mm 5/a .
SUPERIOR CAPABILITY
DIGITAL READ-OUT OPT10N 1NF1N1TELY VARIABLE POWER FEED OPTIONS
The 2 axìs digital read-out system can provide higher production lnfínitely varíable power feed units are available for both the
efficiency and a better, moгe uniform machíníng qualíty, ieading longitudinal X and cross Y axes and can be fitted to machines
to a reduction of rejects and qualíty control costs, together wíth having table lengths up to 1220mm 48 . Both units íncorporate
less strain on the operator. rapid traverse controlled by means of a pushbutton, while the
feed ís selected by turning the graduated dial mounted on the
Features include memory storage of reference point, datum front of the unít. Feed rates of both uníts are variable from 20mm
ínformatíon and parameters. Using a second datum, incremental to 875mm 3/a to 35 per minute and the rapid traverse feed rate
and countdown moves can be made and a true inch/metric is 1143mm 45 per minute.
conversíon facility is provided. system resolutíon ís oгand the standard traversing lengths are X axís 660mm 26 and Y axis 305mm 12 .
A complete DRO system ís avaílable for retro-fít.
HIGH PRODUCTION CAPABILITY 
DISTORTION-FREE CLAMPS
The dígítal read-out system ís provided with special reed type distortion-free clamps fitted to the machine table and cross-slíde. These eliminate the displacement which often occurs with normal mílling machine clampíng systems. 
SUPERIOR OPERATION 
SAFETY OPERATOR CONVENIENCE
The machine is designed to ensure that the investment in people, Grouping of controls
machine, tooling and components ís protected. All the main controls are easily operated from the front of the machíne, íncluding the slide clamps for all three axes.
Safety Features Feed selectíon
1. Spindle brake - rapidly stops thespindle and can be locked on Quick and símple selectíon of cross and longitudínal traverse
for tool changing. is controlled by graduated dial. Rapid traverse is operated by
pushbutton.
2. slípping clutch - protects the quill from possíble damage owing
to overload. síngle spanner operatíon
The standard Bridgeport spanner fits all the movement controls
3. Cutter guard - supplíed as standard. The illustration above and locking bolts on the millíng head, ram, turret and ram
shows the optional perspex splash guard. adaptor.
4. Traverse handles - automatically disengage when traversing. Centralísed lubrícatíon system
Single lever movement lubricates all slides, leadscrews and
5. Kпee elevatíon handle - position may be reversed when not in elevatíng bevel gears.
6. Electrical interlocks - the feed cannot be started if the spindleis stationary.
7. Stop button - a red headed mushroom emergency stop button ís incorporated into the control panel.
MACHINE DIMENSIONS
TABLE
42 X 9 Tab1e size 1065 x 230mm
30 Longitudinal traverse Manual only 760mm
2  Longitudinal traverse Power feed fitted 675mm
12 Cross traverse 305mm
16 Vertical traverse 405mm
3 Number of tee slots 3
5/8 Width of tee slots
2 /ż Centres of tee slots
Power Feed Options
3/α - 35 in./min Feed rate - long and cross 20 - 875 mm/min infinitely variable
45 in./min Rapid traverse - long and cross 1143 mm/min
SPINDLE R8 Tapeг R8
50 - 3750 rpm Spindle speed Type 2J2 head 50 - 3750 гpm
3hp 30 min Motor Type 2J2 head 30 min
2hp continuous continuous
6 3/a-19 Spindle centre to column face 162 - 467mm
0-9 Spindle to table 73 - 480mm
5 Qui11 travel 125mm
12 Ram movement 305mm
SHIPPING PARTICULARS
82 Machine height BR2J2 2085m m
82 x 64 F1oor space occupied 2085mm x 1625mm
115 cu.t Volume occupied
19881  Nett weight basíc machine BR2J2 900kg
26041 b Gross weight basic machine BR2J2 1180kg
Alternatíve table sízes avaílable:
915mm x 230mm 36 x 9 , longitudinal traverse 610mm 24
1220mm x 230mm 48 x 9 , longitudínal traverse 915mm 36
Longítudínal power feed when fitted reduces table traverse by 90mm 31/2
irrespective of table size.

SUPERIOR
ACCESSORIES
The comprehensíve range of accessories considerably extends the Bridgeport Series Ones basic versatility. Most accessories may be retro-fitted, thus allowing the machine s capabilities to accommodate changing production requirements.
HOW ELSE WOULD YOU
DO THESE JOBS?
QUILLMASTER QUILLMASTER R1GHT ANGLE ATTACHMENT
The advantages of the Quillmaster aгe quickly recognised by tool The Quillmaster gearing provides an increase of 50 over the and diemakers, as any corner with a small radíus can be fínísh machine spíndle speed to permit the efficíent use of small end
milled to a degree of sharpness not previously possible. The mílls. Collet capacities are 2, 3, 4, and 5mm /å , 5/зz and spíndle housing of the attachment may be adjusted to any  diameter.
position between vertical and horizontal and through 360 on the quill. By tiltíng the spíndle housing, the insíde walls of an The Quillmaster Right Angle Attachment QRA íncreases ímpression may be milled. even further the usefulness of the attachment. The QRA unit has permanentiy sealed bearings and has a 5mm 3/ıs
Precisíon built to rigíd standards, the Quillmaster is fítted wíth diameter capacity.
permanently lubricated precision bearings and a hardenedground spindle.

ACCESSORIES

RIGHT ANGLE ATTACHMENTS FOR MILLING HEADS
Ideal for machining pockets and cavities these attachments facilitate milling drilling boring and reaming at right angles to the spindle of the milling head

Two sizes are available:
The No 3 attachment provides a 43 speed reduction for relatively heavy-duty work
The No 4 attachment provides a 21 speed reduction for use in positions that would be inaccessible to the larger No 3 unit

The cutter and drive spindles of both attachments are mounted in their own anti-friction bearings and are driven directly from the R8 taper of the milling head by a drive shaft Mounting consists of placing the attachment on the quill securing the drive shaft by means of the spindle draw bar a 3/8 inch bar is required for the No 4 unit and then tightening the clamping screw to hold the attachment firmly to the quill

EQUIPMENT CABINET
Specifically designed to accommodate the small accessories and spindle tooling of the Bridgeport Series One the cabinet has two large smooth-action drawers three shelves that are pivoted for easy access and lockable doors Provision is made for mounting the clamp set on an exterior side panel

OTHER ACCESSORIES AVAILABLE
Right Angle Arbor Support Bracket
Splash Tray
Cross Travel Stop
Inch/Metric Dual Reading Dials
Flood Coolant System
Low Voltage Machine Lighting
Clamp Set
Slotting and Shaping Head (page 7)
Hard Chrome Slideways (page 6)
Power Feeds (page 8)
Digital Read-out (page 8)

SPINDLE TOOLING

Spindle Collets and Adaptors
R8 Taper: Available from 2mm to 20mm diameter in 1mm steps and from 1/8 inch to 3/4 inch by 1/8 inch increments

No 2 Morse Taper: Available from 3mm to 13mm diameter in 1mm steps and from 1/8 inch to 1/2 inch by 1/8 inch increments

Adaptors: Can be supplied to convert the R8 Taper to No 1 or No 2 Morse Taper

Stub Arbors

R8 Taper
Left and right-hand thread supplied complete with spacers and nuts in the following diameters: 8 10 13 16 22 27 32mm 1/2 5/8 3/4 7/8 1

Shell End Mill Arbors
R8 Taper - Available in 13 16 27 32mm 1/2 3/4 1 diameters either cross or long key

Collet Chucks
Titanic - R8 Taper - Complete with a set of 6 10 12 16mm 1/4 3/8 1/2 5/8 collets or with 25mm and 32mm 1 and 1 1/4 collets
Clarkson Autolock Chucks - R8 Taper - Complete with a set of 6 10 12 16mm 1/4 3/8 collets or with a 25mm 1 collet

Drill Chucks
Jacobs - R8 Taper - 13mm 1/2 or 20mm 3/4 capacity
Albrecht Keyless - R8 Taper - 10 13 or 16mm 3/8 1/2 capacity

SPINDLE TOOLING

End Mill Holders
End mills can be rigidly locked in these holders and the leading edge is chamfered to allow maximum vision when machining pockets The short overall length ensures that the tool is held as close as possible to the spindle bearing thus ensuring maximum rigidity under cut Sizes are 6 10 12 16 25mm 1/4 3/8 1/2 5/8 3/4 1 diameters

High Speed Flycutter
The High-Speed Flycutter is counterbalanced to provide faster machining with improved surface finish It is supplied complete with one unground solid carbide cutting tool of general grade M10
Additional tools can be supplied in packs of 5

Boring Heads
R8 Taper - No 1 Boring Head comprising 4 boring tools 1 boring bar 2 Allen keys
R8 Taper - No 2 Boring Head comprising 4 boring tools 4 boring bars 3 Allen keys

Shaping Tools
For use with the type E shaping and slotting attachment The set comprises 5 high-speed steel tools of varying shapes and sizes as indicated plus 2 bars and a special holder for side mounting in the clapper box The extension bars and side mounting holder are designed to take 5mm 1/4 tool bits

BETTER BY BRIDGEPORT

Leicester Plant
Series One Assembly

Bridlington Plant
Series One Saddle Machining

Bridgeport has an extremely high level of commitment to producing the world’s finest machine tools and the UK manufacturing facilities are of the most advanced of their kind anywhere in the world The range of Machining Centres and Milling Machines is built by craftsmen to exceptionally high-quality standards and readily meets the requirements of discerning worldwide markets

The Bridgeport total quality policy embraces every stage of design development and manufacture with each phase of production carefully monitored and constantly reviewed to ensure that quality levels are maintained Quality Management Systems are approved to BS 5750 Part 2 ISO 9002

Better by Bridgeport means a superior high-quality machine backed by worldwide service and spares availability

It all adds up to a better buy

Series One - Geometric Checking

The International
Oeverkruid 2
4941 VV Raamsdonksveer

The international name for quality machine tools
Tel: 01621-19565
Fax: 01621-19575

The right is reserved to amend specifications without notice