Topper (Tongtai) spindle and motor spindle repair
Brochexpress is an independent workshop specialising in the repair, maintenance and diagnostics of Topper spindles and motor spindles — the historic brand marketed today under the Tongtai name, the largest machine tool builder in Taiwan.
Topper (Tongtai), the largest machine tool builder in Taiwan
TLDR: Topper, the historic brand marketed today under the Tongtai name (TONGTAI-TOPPER brand), is the largest machine tool builder in Taiwan, with a range covering vertical machining centres, horizontal machining centres, 5 axis centres, horizontal lathes and multi-spindle lathes, widely represented in France through its TTGroup France subsidiary.
Topper, the historic brand marketed today under the Tongtai name — grouped with Honor Seiki and Asia Pacific Elite Corp within the TTGroup — has established itself as the largest machine tool builder in Taiwan. The range covers vertical machining centres (TMV-A, TMV-QII series), horizontal machining centres (HA-II, HB-II, SH series), 2 and 3 axis horizontal lathes (THL series) as well as multi-spindle lathes and 5 axis vertical centres, for demanding sectors such as aerospace, automotive and general engineering.
The group highlights its expertise in machining process and fixture studies, with strong references in Asia among the subcontractors of the world's leading aircraft manufacturers and Chinese builders. In France, TTGroup France, a subsidiary created in 2017, works with its French sister companies PCI-SCEMM (a French machine tool builder) and CERIMATEC (robotic solutions) to offer turnkey solutions tailored to the specific projects of French customers. The brand's dual naming has a practical day-to-day consequence: the same Topper spindle may be referenced as Tongtai depending on the year of the machine, and it is the nameplate that settles the matter at quotation stage.
A range of Topper BT40 spindles, from 8,000 to 15,000 rpm, up to 37 kW
TLDR: Topper Tongtai machining centres use BT40 taper spindles, with rotation speeds from 8,000 to 15,000 rpm depending on the model, while SH series horizontal centres reach power ratings of up to 37 kW with 95 Nm continuous torque, and high-capacity THL series horizontal lathes deliver up to 45 kW for 1,477 Nm of torque.
On historic TMV-A series vertical machining centres, the Tongtai BT40 taper spindle runs at 12,000 rpm. On CNC lathes such as the TNL-100A, the spindle reaches 3,000 rpm for a 62 mm bore.
On recent SH series horizontal machining centres, an integrated spindle delivers 15,000 rpm with a power rating of up to 37 kW and 95 Nm of continuous torque, paired with a high-precision rotary table indexed to 0.001° and rapid acceleration of 1.0 G on the X axis. On high-capacity THL series horizontal lathes, dedicated to parts up to 620 mm in diameter, the spindle delivers a power rating of 45 kW for a maximum torque of 1,477 Nm, at rotation speeds of up to 2,500 rpm, with Z axis travels of 1,200 to 3,000 mm depending on the configuration. These are two opposite duty regimes — high speed on one side, high torque on the other — calling for different bearing checks.
Topper (Tongtai) spindles and motor spindles covered (non-exhaustive list)
- BT40 spindles, 8,000 to 15,000 rpm, TMV-A and TMV-QII series vertical machining centres
- Integrated spindles, up to 37 kW and 95 Nm, SH series horizontal machining centres
- High-capacity horizontal lathe spindles, up to 45 kW and 1,477 Nm, THL series
- Historic CNC lathe spindles, TNL series
- 5 axis vertical centre spindles, CT series
- Horizontal machining centre spindles, HA-II and HB-II series
Interfaces and specifications
The Topper (Tongtai) spindles and motor spindles we repair come with a BT40 interface on machining centres, with rotation speeds from 8,000 to 15,000 rpm and power ratings reaching up to 45 kW on high-capacity lathes — exact specifications to be confirmed on quotation according to the reference of your machine.
Our expertise on your Topper (Tongtai) spindles and motor spindles
TLDR: Brochexpress works across the entire life cycle of your Topper motor spindles, with the same rigour as for the other brands in our portfolio.
On-site customer service
- Diagnostics and service directly on your machine, in your production workshop, to limit downtime on your production line
Full diagnostics
- Inspection of clearances, balancing, bearing condition and sealing, matched to the spindle duty — high speed or high torque — with a detailed technical report
Preventive and corrective maintenance
- Maintenance programme tailored to the production rates of aerospace and automotive work, together with corrective action in the event of a breakdown
Overhaul and refurbishment
- Grinding, bearing replacement, sealing refurbishment and rotation testing in the workshop, restoring the manufacturer's original tolerances
Why choose Brochexpress for your Topper (Tongtai) spindles
- An independent workshop, with no capital ties to manufacturers, guaranteeing an objective diagnosis
- Expertise in high-speed BT40 spindles as well as high-torque lathe spindles
- Two service sites: Beaurepaire (France) and Lussery-Villars (Switzerland)
- Support from the first intervention through to return to production
Turnaround and warranty
- On-site service within 48h
- Workshop repair: around 20 working days depending on parts availability
- 12-month warranty on all our repairs
Frequently asked questions
Are Topper and Tongtai the same brand?
Yes, Topper is the manufacturer's historic brand, marketed today under the Tongtai name (TONGTAI-TOPPER brand), the largest machine tool builder in Taiwan.
Do you repair the BT40 spindles of Topper Tongtai vertical machining centres?
Yes, we work on these spindles whatever the generation of the machine (historic Topper or recent Tongtai), up to 15,000 rpm.
Do you work on the high-power spindles of THL series horizontal lathes?
Yes, we diagnose and repair these spindles, sized for machining large-capacity parts, up to 45 kW.
What is the average turnaround for a full overhaul?
Allow around 20 working days in the workshop, depending on the condition of the spindle and the availability of parts (bearings, seals, specific components).
Do you work on older Topper machines, from before the change to the Tongtai brand?
Yes, we diagnose and repair spindles whatever the age of the machine.
Are you an official Topper Tongtai partner?
No. Brochexpress is an independent repair and maintenance workshop. We are neither affiliated with, nor a partner of, nor an authorised distributor of the TTGroup. Our business covers independent maintenance of industrial equipment, permitted under the principle of referential trademark use (EU Trademark Directive 2015/2436 / French Intellectual Property Code, art. L.713-6).
A reliable partner for your industrial performance
Whether it is an emergency on-site intervention, a full workshop overhaul or a preventive maintenance programme, Brochexpress brings its expertise to your production. As an independent workshop, we work across all Topper and Tongtai motor spindles — vertical and horizontal machining centre and lathe spindles — with the responsiveness and rigour demanded by the most exacting industrial environments: aerospace, automotive and general engineering.
Our teams are at your disposal from our sites in Beaurepaire (France) and Lussery-Villars (Switzerland) for a study of your needs, a diagnosis or a personalised quotation.
Request a quoteRelated services
Topper® and Tongtai® are registered trademarks of the TTGroup. Brochexpress is neither affiliated with, nor a partner of, nor an authorised distributor of the TTGroup. Our business covers independent repair and maintenance of industrial equipment, permitted under the principle of referential trademark use (EU Trademark Directive 2015/2436 / French Intellectual Property Code, art. L.713-6).