Manufacturer of high-precision gears, gear teeth and gearboxes with an in-house hardening shop in Bremen.
TANDLER Zahnrad- und Getriebefabrik GmbH & Co. KG
BremenNew on Amplifa
About TANDLER
TANDLER Zahnrad- und Getriebefabrik is a family-owned company founded in 1949, owner-managed and based in Bremen, with more than 200 employees. The company manufactures gears, gear components and gearboxes – including spiral bevel gearboxes, speed-summing gearboxes, the ServoFoxx® planetary gearbox and custom special gearboxes – from one-off production to medium series, entirely at the Bremen site. The in-house TANDLER hardening shop enables nearly 100% vertical integration: from design through sawing, turning, milling, gear cutting, EDM and grinding to heat treatment (case hardening, nitriding, tempering, Tan-Ox®) and assembly of complete drive units. In addition to standard and special gearboxes, TANDLER produces gear sets for historic motorsport and offers contract hardening, spare parts, repair and maintenance with 24-hour service. The products are used in around 25 industries, including special machinery construction, machine tools, printing and packaging machinery, aerospace, the pharmaceutical industry and wind turbines; representatives serve customers on all six continents.
- Site
- Bremen
- Processes
- Bevel gear cutting (Zyklo-Palloid/Palloid, hard gear finishing), Spur gear cutting (spur gears, bevel gears, internal gearing, helical and straight-cut,, Tooth flank grinding (spur gears, spiral bevel gears, internal gearing,, Grinding (external, internal, profiles, centering, plane surfaces, non-circular/profile grinding), Turning (manual to CNC with driven tools, Y-axis, insert machining, bar feeders), Milling (machining center with pallet system, housing production, 5-axis milling), EDM (wire EDM), Sawing, deburring
- Materials
- alloyed case-hardening steel, Steel, Case-hardening steel, Tan-Ox® heat treatment, Case hardening, Nitriding, Tempering, Stress-relief annealing
- Certificates
- Quality control after every manufacturing step, Gear measuring centers (Klingelnberg), Coordinate measuring system, Crack testing / grinding burn testing, ISO 9001 certified
- Founded
- 1949
- Employees
- more than 200
- 01
Engineering/design
- 02
Sawing and rough machining
- 03
Turning
- 04
Milling
- 05
Gear cutting (bevel and spur gears)
- 06
EDM
- 07
Heat treatment (TANDLER hardening shop)
- 08
Tooth flank and profile grinding
- 09
Quality control
- 10
Assembly
- 11
Delivery
Materials & Processes
alloyed case-hardening steel
Material for the spiral bevel gears of the speed-summing gearboxes, hardened and matched as pairs.
Case-hardening steel
For gear components, suitable for case hardening in the in-house hardening shop.
Tan-Ox® heat treatment
Proprietary thermal treatment process for increasing service life and wear resistance.
Case hardening
Hardening process for steel components in the in-house hardening shop.
Nitriding
Thermochemical heat treatment for wear protection, also on a contract basis.
Tempering
Heat treatment to adjust the strength of steel components.
Stress-relief annealing
Reduces internal stresses before machining or after hardening.
Locations
Bremen
DEHeadquarters, manufacturing and hardening shop
- Lot size
- One-off production to medium series
- Materials
- Steel, case-hardening steel
Components
Inside the production
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Bevel gear cutting (Zyklo-Palloid/Palloid, hard gear finishing)Machining | – | – | – | – | Steel |
| Spur gear cutting (spur gears, bevel gears, internal gearing, helical and straight-cut,Machining | – | – | – | – | – |
| Tooth flank grinding (spur gears, spiral bevel gears, internal gearing,Surface | – | – | – | – | – |
| Grinding (external, internal, profiles, centering, plane surfaces, non-circular/profile grinding)Surface | – | – | – | – | – |
| Turning (manual to CNC with driven tools, Y-axis, insert machining, bar feeders)Machining | – | – | – | Single piece – Series | – |
| Milling (machining center with pallet system, housing production, 5-axis milling)Machining | – | – | – | – | – |
| EDM (wire EDM)Machining | – | – | – | – | – |
| Sawing, deburringMachining | – | – | – | – | – |
| Hardening / heat treatment (case hardening, stress-relief annealing, nitriding, tempering,Heat treatment | – | – | Small parts | – | Steel, Metal |
| Quality control (gear measuring center, coordinate measurement, single-flank gear rolling testing,Testing | – | – | – | – | – |
| Assembly of gearboxes and drive unitsAssembly | – | – | – | – | – |
| Engineering: design of gear components and complete gearboxes, creationEngineering | – | – | – | – | – |
| Gearbox and gear manufacturing (spiral bevel gearboxes, speed-summing gearboxes,Machining | – | – | – | One-off production – medium series | alloyed case-hardening steel |
36 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Bevel gear cutting machine (Zyklo-Palloid) | Klingelnberg KNC 40 | – | – | – | Bremen |
| Bevel gear cutting machine (Zyklo-Palloid) | Klingelnberg KNC 60 | – | – | – | Bremen |
| Profile tooth flank grinding machine (bevel gear) | Klingelnberg G 27 | – | – | – | Bremen |
| Profile tooth flank grinding machine (bevel gear) | Klingelnberg G 60 | – | – | – | Bremen |
| Bevel gear milling machine | Klingelnberg C 28 P | – | – | – | Bremen |
| Gear shaping machine | Lorenz LFS 420 | – | – | – | Bremen |
| Gear cutting machine | Richardon R 160 CNC | – | – | – | Bremen |
| Gear cutting machine | Richardon R 300 CNC | – | – | – | Bremen |
| Gear cutting machine | Richardon R 400 CNC | – | – | – | Bremen |
| Generating gear grinding machine | Reishauer RZ 360 | – | – | – | Bremen |
| Profile grinding machine | Reform ZSM 2000 | – | – | – | Bremen |
| Profile tooth flank grinding machine | Niles ZE 800 | – | – | – | Bremen |
| Universal cylindrical grinding machine with C-axis | Studer S31 | – | – | – | Bremen |
| Bore grinding machine | Glauchau SI 6 | – | – | – | Bremen |
| Surface grinding machine | Geibel + Hotz FS 640 SD | – | – | – | Bremen |
| Vertical turning machine | EMAG VL5 | – | – | – | Bremen |
| CNC turning machine with driven tools and Y-axis | Traub TNA 400 | – | – | – | Bremen |
| CNC turning machine | Traub TNA 480 | – | – | – | Bremen |
| CNC turning machine | Traub TNA 600 | – | – | – | Bremen |
| CNC turning machine | Traub TND 550 | – | – | – | Bremen |
| CNC turning machine with bar feeder | Traub TNA 300 | – | – | – | Bremen |
| CNC turning machine with bar feeder | Traub TND 350 | – | – | – | Bremen |
| 5-axis vertical milling machine | MAG/FFG NBV 700 5X | – | – | – | Bremen |
| 4-axis horizontal milling machine | MAG/FFG NBH 630 | – | – | – | Bremen |
| Milling machine | Fehlmann Picomax | – | – | – | Bremen |
| Milling machine | Hedelius Tiltenta | – | – | – | Bremen |
| Machining center | Heckert CWK 400D | – | – | – | Bremen |
| Gear measuring center | Klingelnberg P 100 | – | – | – | Bremen |
| Gear measuring center | Klingelnberg PNC 65 | – | – | – | Bremen |
| Gear measuring center | Klingelnberg P 40 | – | – | – | Bremen |
| Balancing machine (dynamic, 1-2 planes, vertical) | Schenck VE | – | – | – | Bremen |
| Magnetic particle crack testing machine (surface crack testing) | Karl Deutsch | – | – | – | Bremen |
| Coordinate measuring system | Wenzel LH 65 | – | – | – | Bremen |
| Laser marking | Schilling | – | – | – | Bremen |
| Single-flank gear rolling testing machine | – | – | – | – | Bremen |
| Wire EDM machine | – | – | – | – | Bremen |
Additional services
Quality
Every component is inspected after every manufacturing step; the equipment used includes gear measuring centers (Klingelnberg P 100, PNC 65, P 40), a Wenzel LH 65 coordinate measuring system, single-flank gear rolling testing, dynamic balancing, magnetic particle crack testing, grinding burn testing by means of Barkhausen noise and laser marking – with seamless traceability and documentation.
| Evidence | Bremen |
|---|---|
| Quality control after every manufacturing step | |
| Gear measuring centers (Klingelnberg) | |
| Coordinate measuring system | |
| Crack testing / grinding burn testing | |
| ISO 9001 certified |
History
- 1949
Founded as a family business in Bremen; initially gear manufacturing for Borgward automobiles
Development of the spiral bevel gearbox and the speed-summing gearbox
Development of the ServoFoxx® planetary gearbox as well as the Tan-Ox® thermal treatment process