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Twin Spindle Drill Heads

Gy-Roll twin spindle and multi-spindle heads are specially designed for use with small self-feed drilling units.

Multi Spindle Drill Heads

Gy-Roll twin spindle and multi-spindle heads are specially designed for use with small self-feed drilling units.

Fixed Spindle Drill Heads

These heads are specifically made to suit any form of hole pattern.

About Us

Specialists in the design and manufacture of multi-spindle drilling and tapping heads

WELCOME TO GY-ROLL LTD

Gy-Roll twin spindle and multi-spindle heads are specially designed for use with small self-feed drilling units. These self-feed drills are primarily intended for the drilling and tapping of small holes. As it is more often necessary to drill a group of small holes instead of a single hole and since such groups are often on close centres, it is important that a head specially designed for these units be capable of drilling on the closest possible centres. The minimum centre distance for Gy-Roll heads is approximately twice the maximum drill diameter.

Since the heads may be run at high speeds, particular care has been given to the design of the bearings for the internal gearing and spindles. All journal bearings are precision ground and needle bearings have caged rollers so that friction and subsequent wear is kept to a minimum. Axial spindle load is taken by a roller thrust bearing with a rating at least three times greater than a ball thrust bearing of an equivalent outside diameter.

Standard drilling adaptors and reversing tapping adaptors are supplied to suit most self-feed drilling units and air motors. Special adaptors for other units can be quoted for. The heads can be supplied for general workshop use with a taper shank for fitting directly into a drilling machine spindle or with standard flange or spigot locations for adapting to a drilling machine quill.

The screw back type of collet used in Gy-Roll heads provides the maximum drilling capacity in relation to the spindle diameter. The type 950 and 1250 heads can be supplied with either the screw back type of collet or with spindles to suit automotive drill adaptors.

The lubrication system in all Gy-Roll heads is designed in such a way that oil is released by capillary action from reservoirs as and when it is needed. The oil reservoirs provide oil to the spindles with the head in any position from vertical to horizontal. The oil is of a standard motor grade which is easily obtainable.

Our Service

Specialists in the design and manufacture of multi-spindle drilling and tapping heads.

Multi Spindle Adjustable Heads

Gy-Roll adjustable centre heads are suitable for drilling or tapping 2 holes or 3 holes equi-spaced in a straight line and 3 or 4 holes equi-spaced on a common PCD. A 5 spindle adjustable head is also available where the central spindle is fixed and the 4 outer spindles are adjustable on a common PCD.

Fixed Centre Heads

Where there are applications for heads where the hole pattern can not be attained by means of the standard adjustable heads, fixed centre multi spindle heads can be provided. These heads are specifically made to suit any form of hole pattern. Maximum collet capacity and minimum centre distance for the type, 400, 650, 800, 950 and 1250 fixed centre heads are the same as those for the twin spindle adjustable heads.

Twin Adjustable Heads

Gy-Roll twin spindle and multi-spindle heads are specially designed for use with small self-feed drilling units.

Spares & Service

After Sales & Spares

Gy-roll is committed to providing excellence, not only in the products we manufacture, but also in our after sales service. It is our aim to continue to improve upon our levels of product quality and customer service to exceed customer expectations.

Help & Support

Gy-roll also offer an out of hours technical helpline (+ 44 7831 246673).

Gy-roll parts

Machine Shop Plant

2 off Quaser MV184 CNC Machining centres

2 off Bridgeport VMC1000 CNC Machining centres (4th Axis)

1 off Bridgeport VMC600 CNC Machining Centre

1 off Haas ST40 CNC Lathe

1 off Haas SL30 CNC Lathe

1 off Haas SL20 CNC Lathe

1 off Tornado 100 CNC Lathe

1 off Bridgeport ezpath CNC Lathe

1 off Colchester student Manual Lathe

1 off Potsie Manual Lathe

2 off Bridgeport Manual Mills

Our Team

John Hedington

Technical/Sales Manager

John Hedington

Technical/Sales Manager

Trevor Dartford

Parts / Administrator

Trevor Dartford

Parts / Administrator

Jason Robertson

Machine Shop Foreman

Jason Robertson

Machine Shop Foreman

Jenny Smyth

Accounts

Jenny Smyth

Accounts

Emma Hodgson

Marketing

Emma Hodgson

Marketing

If You Need Any Help! Contact Us

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