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Mongtec MFC face drivers

15 article numbers across the MFC series. Turn the whole shaft in one clamping. The face driver grips the end face with carbide pins and drives the part from the tailstock end — no chuck, no second operation. Mongtec Precision is a Taiwanese brand, designed and engineered in Taichung, Taiwan.

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What a face driver does

A part held in a chuck cannot be turned where the chuck is holding it, so a shaft is turned in two operations with a re-clamp in between — and the re-clamp is where concentricity between the two halves is lost. A face driver removes it. The part is held between a centre point and a set of hardened driving pins that bite into the end face; the pins carry the torque, the point carries the location, and the entire outside diameter of the shaft is exposed to the tool at once.

The catalogue's four claims, in order: minimum working-time loss and productivity improvement from one-time clamping; accuracy that auto-adjusts to the material surface; high wear performance; and wide use on NC machines. The first is the commercial argument, the second is the technical one — the pin set floats so that an as-sawn or as-forged end face still gets even engagement from every pin.

MFC and MFCST

MFC is the Morse-taper execution, MT3 to MT5, in four work-size ranges: Ø18–38, Ø27–55, Ø39–75 and Ø55–100 mm, rated to 55, 60, 70 and 100 kg respectively. MFCST is the straight-shank execution of the same four sizes, with the Φd4 shank dimension in place of the taper.

Carbide hardness of the driving elements is HRA 90–91. Work direction is set by which way the MFC-type pin is fastened.

Getting the centre hole right

A face driver is more sensitive to the centre hole than an ordinary centre is, because the point has to locate the part while the pins are pushing it. A centre hole that is too large lets the part sit on the pins instead of the point, and one that is too small bottoms the point before the pins engage — both show up as run-out on the finished diameter. Mongtec publishes the hole size against the driver size; send the part drawing with the RFQ and the pairing is confirmed before you cut a centre hole in a hundred blanks.

Article numbers — dimensions in mm

Dimension symbols are the catalogue's own and refer to the dimension drawing printed for each series. Quote the series name together with the model number — the same model number is used in more than one series, so "MSNN 2601001" identifies a part and "2601001" on its own does not. A dash means the catalogue does not print a usable value for that cell; those are confirmed in writing at RFQ.

MFC — 11 article numbers

Model No	Taper	Φd	Φd1	Φd2	Φd3	ΦD	ΦD1	L	L1	L2	L3	L4	L5	L6	L7	Work Size	MAX Weight(kg)
3107001	MT3	5	17	28	5	41.4	41	141.3	56.3	85	31.8	24.5	6	5	5.3	Φ18-Φ38	55
4107001	MT4	5	17	28	5	41.4	41	164.3	56.3	108	31.8	24.5	8	5	5.3	Φ18-Φ38	55
5107001	MT5	5	17	28	5	41.4	41	192.3	56.3	136	31.8	24.5	8	5	5.3	Φ18-Φ38	55
3207001	MT3	9	26	38	7	52	51.4	148.8	63.8	85	36.8	27	6	6.5	8.8	Φ27-Φ55	60
4207001	MT4	9	26	38	7	52	51.4	171.8	63.8	108	36.8	27	8	6.5	8.8	Φ27-Φ55	60
5207001	MT5	9	26	38	7	52	51.4	199.8	63.8	136	36.8	27	8	6.5	8.8	Φ27-Φ55	60
3307001	MT3	14	38	52	9	68	67.4	168	83	85	47	36	6	9	13	Φ39-Φ75	70
4307001	MT4	14	38	52	9	68	67.4	191	83	108	47	36	8	9	13	Φ39-Φ75	70
5307001	MT5	14	38	52	9	68	67.4	219	83	136	47	36	8	9	13	Φ39-Φ75	70
4407001	MT4	18	54	72	14	83.5	82.5	200.6	92.6	108	57.6	35	8	11	15.6	Φ55-Φ100	100
5407001	MT5	18	54	72	14	83.5	82.5	228.6	92.6	136	57.6	35	8	11	15.6	Φ55-Φ100	100

MFCST — 4 article numbers

Model No	Φd	Φd1	Φd2	Φd3	Φd4	ΦD	ΦD1	L	L1	L2	L3	L4	L6	L7	Work Size	MAX Weight(kg)
TS0107001	5	17	28	5	35	41.4	41	141.3	56.3	85	31.8	24.5	5	5.3	Φ18-Φ38	55
TS0207001	9	26	28	7	35	52	51.4	148.3	63.8	85	36.8	27	6.5	8.8	Φ27-Φ55	60
TS0307001	14	38	52	9	35	68	67.4	168	83	85	47	36	9	13	Φ39-Φ75	70
TS0407001	18	54	72	14	41	83.5	82.5	177.6	92.6	85	57.6	35	11	15.6	Φ55-Φ100	100

Source: Mongtec Precision Center catalogue, Ver 2026 (drive centres).

Check the Morse taper of your tailstock before ordering. A centre is made for one taper and cannot be adapted without a sleeve, and a sleeve costs rigidity at exactly the point where you want it. Send Mongtec the machine make, model and tailstock taper with the RFQ.

Frequently asked

Can a face driver replace a chuck?

For shaft work between centres, yes — that is the point of it. The part is driven from the end face, so the whole outside diameter can be turned in one clamping. It does not replace a chuck for flanged, short or unbalanced parts.

What centre hole does it need?

Matched to the driver size. Mongtec publishes a face-driver centre-hole size table and the limits either side of it; too large and the part rides on the pins, too small and the point bottoms out. Confirm against your part drawing at RFQ.

How is the driving direction set?

By the fastening direction of the MFC-type pin, per the catalogue. The same driver can be set for either work direction.

MFC or MFCST?

MFC mounts on a Morse taper (MT3, MT4, MT5). MFCST is the straight-shank version of the same four work-size ranges — choose by what your tailstock or spindle accepts.