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Mongtec Alternatives to Song Gia (崧嘉實業) BMT Live Tool Holders

Mongtec, a Taiwanese tooling brand, supplies BMT and VDI driven tool holders for CNC lathe turrets. Song Gia Industrial Co., Ltd. (崧嘉實業有限公司) is a Taiwan-based manufacturer headquartered in Beitun District, Taichung City (founded 1991, "more than 30 years of experience" per its own site), specializing in live tooling and automatic-lathe components for Swiss-type and turret lathes from Tsugami, Citizen, Star, Miyano, Nomura, Nakamura, and Doosan. This page compares Mongtec's BMT/VDI driven tool holder line against Song Gia's BMT-series live tool holders, which are Song Gia's closest published match to Mongtec's BMT/VDI category.

Song Gia to Mongtec Cross-Reference Table — BMT Interface

Song Gia column sourced from https://www.songgia.com.tw/en/products/live-tools-for-cnc-lathes/bmt-series, accessed 2026-07-10 (SONG GIA INDUSTRIAL CO., LTD., Beitun District, Taichung City, Taiwan). Mongtec column sourced from Mongtec internal engineering spec sheet, verified 2026 (https://www.mongtec-tools.com/en-US/plist1-bmt-vdi-tool-holder, accessed 2026-07-10).

SpecSong Gia BMT SeriesMongtec BMT/VDI Driven Tool HolderCompatibility Level
Interface sizesBMT-45, BMT-55, BMT-65 (Doosan); BMT-44/BMT-55-equivalent (Nakamura WT-100/WY-100/WT-150/AS-200); M06/M08 (Tsugami)BMT sizes per Mongtec catalog; confirm exact size against Song Gia's machine-brand designationSame BMT size-naming convention for the Doosan-compatible sizes; confirm exact dimensions before treating as interchangeable
CoolantThrough-coolant direct to cutting point (internal channel)Per Mongtec spec sheet; confirm coolant routing option at orderComparable feature; confirm pressure rating with both suppliers
Bearing/precision classP4-grade precision ball bearing (per Song Gia's live-tool product description)Per Mongtec spec sheetComparable precision class; confirm exact runout spec with both suppliers
OriginTaiwanese brand, Taichung, TaiwanTaiwanese brand — designed & engineered in TaiwanBoth suppliers are Taiwan-based
Max rotational speed / torqueNot published on Song Gia's BMT category page; figures likely vary by specific machine-reference modelNot a standard published figure on Mongtec's public category pageGap – confirm directly with both suppliers by exact machine reference before a speed/torque-critical order

Mongtec article numbers by turret interface and output — for part-number cross-reference

Turret interfaceAxial (0°)Radial (90°)
VDI16M0195 (ER16), M1096 (ER11), M3095 (ER11)M2095 (ER11), M4095 (ER11), M5095 (ER16), M6095 (ER11), M7095 (ER11)
VDI20M2006 (ER20), M2106 (ER20), M3106 (ER16), M4106 (ER20)M3006 (ER16), M5006 (ER16), M5106 (ER16), M6106 (ER10), M7106 (ER20)
VDI25M2046 (ER20), M5146 (ER25), M7046 (ER20), M8046 (ER20)M3046 (ER20), M4146 (ER25)
VDI30M0716 (ER25), M1116 (ER25), M1816 (ER25), M2016 (ER20), M2026 (ER32), M2116 (ER25), all 30 →M0116 (ER25), M0316 (ER25), M0416 (ER25), M0816 (ER25), M1416 (ER25), M1716 (ER25), all 28 →
VDI40M0726 (—), M0926 (ER32), M1126 (ER32), M1826 (ER32), M2326 (ER32), M2426 (ER32), all 36 →M0126 (ER32), M0166 (ER32), M0326 (ER32), M0426 (ER32), M0526 (ER32), M0626 (ER25), all 37 →
VDI50M2036 (ER40), M2136 (ER40), M4036 (ER40), M5236 (ER40), M6036 (ER40)M0136 (ER40), M0236 (ER40), M1136 (ER40), M3136 (ER40), M4136 (ER40), M5036 (ER40), all 11 →
VDI60M1056 (ER50), M7056 (ER50), M8056 (ER50)
BMT40M1257 (—)
BMT45M0407 (—), M6007 (ER25), M7001 (ER25), M7014 (ER25), M9407 (ER25)M2007 (ER25), M3307 (ER25), M8007 (ER20), M8307 (—)
BMT55M1817 (ER25), M4117 (ER32), M6117 (ER25), M6317 (ER25), M7317 (ER32), M7517 (—), all 7 →M0317 (ER25), M0717 (ER32), M0817 (—), M1117 (ER25), M1317 (ER32), M2317 (ER25), all 14 →
BMT60M4176 (—)
BMT65M3227 (ER32), M3427 (ER40), M4027 (ER32), M7427 (ER32), M9327 (—)M0227 (ER32), M1227 (ER40), M2427 (—), M2527 (ER32), M5127 (ER32), M6227 (ER32), all 8 →
BMT75M1037 (ER32), M1137 (ER40), M3037 (ER40), M5037 (ER40), M7037 (ER40), M7137 (ER40)
BMT85M0047 (ER50), M4047 (ER50), M5047 (ER50), M7047 (ER50)

Send the Song Gia (崧嘉實業) part number together with your machine model and turret — Mongtec engineering maps it to the matching Mongtec article number at quotation. The check is free.

Send a Song Gia (崧嘉實業) part number for cross-reference →

Why Machine Shops Consider Mongtec: Lead Time, Support, and Cost

Lead Time

Song Gia manufactures in Taichung, Taiwan, the same city where Mongtec is headquartered, so for buyers already sourcing from Taiwan, lead-time differences between the two suppliers are typically driven by order volume, exact machine-reference match, and inventory position rather than country-of-origin freight time.

Local Support

Song Gia Industrial Co., Ltd. was founded in 1991 and describes itself as a "designated partner" with TSUGAMI, MIYANO, and CINCOM, with its facility at No. 148, Songzhu 2nd Rd., Beitun District, Taichung City (source: https://www.songgia.com.tw/en/about/company, accessed 2026-07-10). Mongtec similarly supports customers directly from Taiwan with engineering-verified spec sheets, giving shops in the region two comparably local sourcing options for BMT-interface live tooling.

Total Cost of Ownership

Song Gia's catalog is built almost entirely around machine-specific live tooling for Swiss-type and turret lathes (Tsugami, Citizen, Star, Miyano, Nomura, Nakamura, Doosan), which suits shops running those specific machine brands and needing an exact OEM-reference cross-match. Mongtec's BMT & VDI Driven Tool Holder line is organized by generic interface size rather than machine brand, which can simplify sourcing for shops that just need a standard BMT/VDI interface rather than an exact machine-brand part number.

Specification Verification: How We Match Interface Dimensions

Mongtec's BMT/VDI driven tool holder dimensions are drawn from Mongtec's internal engineering spec sheet, verified against the published category page at https://www.mongtec-tools.com/en-US/plist1-bmt-vdi-tool-holder (accessed 2026-07-10). Song Gia's published BMT interface sizes (BMT-45/55/65 for Doosan; equivalent designations for Nakamura and Tsugami machines) and design features (through-coolant, P4-grade bearings, Taiwan manufacturing) come directly from Song Gia's own product pages (accessed 2026-07-10). Because Song Gia organizes its catalog by machine-brand reference rather than a generic interface-size spec table, shops verifying an exact swap should provide their specific lathe model to both Song Gia and Mongtec and compare the resulting dimensional drawings directly.

Which Song Gia Products Have a Mongtec Equivalent?

Replacing a Song Gia (崧嘉實業) driven tool holder

If a Song Gia (崧嘉實業) unit on your machine is worn, damaged or discontinued, you do not need the original article number to replace it. Send the model number, the name plate photo, or the drawing of the driven tool holder you run today — Mongtec engineering cross-references the mounting, coupling and output geometry and quotes a suitable Mongtec article, stating clearly which dimensions were confirmed. Repair of the existing unit is sometimes the better answer; where we see that, we say so.

When Mongtec is a sensible alternative to Song Gia (崧嘉實業) — and when it is not

Mongtec publishes this comparison so buyers can judge the swap themselves. It is not a claim that one brand is better than the other — the two are different companies with different ranges, and the right choice depends on the machine and the job.

Cases where a Mongtec unit is a reasonable swap

Cases where you should stay with Song Gia (崧嘉實業)

What to send Mongtec so the answer is not a guess. To answer a cross-reference question properly Mongtec needs four things: the machine make and model, the turret or spindle interface, the article number of the unit you are replacing (a photo of the nameplate is enough), and the quantity. With those four Mongtec confirms the fit and quotes. Without them any answer is a guess, and in tooling a guess is expensive.

Send it to info@mongtec.com or use the enquiry form. A drawing or a photo of the unit on the turret speeds this up; neither is required to start.

FAQ

Is Mongtec's BMT driven tool holder a direct drop-in replacement for a Song Gia BMT-series unit?
For the Doosan-compatible sizes (BMT-45/55/65), the size designation is a strong starting point, but Song Gia's catalog is organized around specific machine-brand references (Doosan, Nakamura, Tsugami) rather than a generic interface table, so the exact machine model should be confirmed with both suppliers before ordering.
Does Song Gia publish RPM or torque figures for its BMT-series live tools?
Not on its public BMT category page. Song Gia's site lists design features (through-coolant, P4-grade bearings) rather than a numeric spec table, and figures likely vary by the specific machine-reference model. Contact Song Gia directly with your machine model for exact figures.
Does Song Gia serve Swiss-type (sliding-head) lathes specifically?
Yes, a large part of Song Gia's catalog is built around Swiss-type/automatic lathe components for Tsugami, Citizen, Star, Miyano, and Nomura machines, which is a more specialized focus than Mongtec's generic BMT/VDI interface line. If you run one of these specific machine brands, confirm with Song Gia whether an exact reference model exists before assuming a generic BMT/VDI swap will fit.
What bearing precision class does Song Gia use?
Song Gia states its live tool CNC lathe holders use P4-grade precision ball bearings. Confirm Mongtec's equivalent bearing class directly with Mongtec engineering if this is a decision factor for your application.
Where is Song Gia manufactured?
Song Gia manufactures in Beitun District, Taichung City, Taiwan, the same general manufacturing region as Mongtec, so freight/lead-time differences between the two suppliers are typically smaller than when comparing against European or Japanese manufacturers.
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