CNC Controllers

Showing 1945 - 1968 of 2142 products

$3,646.02

Only 2 units left

Product
Article Number (Market Facing Number)	6FC52200AA011AA0
Product Description	**spare part** SINUMERIK 840DI (HW) PCU50: Pentium III/500 MHz/128 MB 24 V DC; incl. MCI board with Windows NT4.0 (OS: SINUMERIK 840D BS003) only as overall system in connection with 840DI system software available
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	Not available
UPC	Not available
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC60E
Product Group	3512
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	13.358 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5210-0DF21-2AA0 Siemens

$10,015.81

Only 9 units left

Product
Article Number (Market Facing Number)	6FC52100DF212AA0 \| 6FC52100DF212AA0
Product Description	spare part SINUMERIK PCU 50 566 MHz, 256 MB RAM; 24 V DC; Windows XP Professional for embedded systems (Windows XP Professional for Embedded Systems)
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	4025515016991
UPC	887621195618
Commodity Code	85371091
LKZ_FDB/ CatalogID	NC60E
Product Group	3512
Group Code	R2S1
Country of origin	Germany
SCIP number	51516441-7670-4144-857a-d9c40c7ec74f
Delivery information
Net Weight (lb)	11.905 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5412-0FA10-0AA0 Siemens

$403.56

Only 5 units left

Product
Article Number (Market Facing Number)	6FC54120FA100AA0 \| 6FC54120FA100AA0
Product Description	*spare part* SINUMERIK 810D axis expansion module for maximum configuration up to 5 drives pluggable into 1 or 2 axis 611 power modules incl. flat ribbon cables
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	4025515020202
UPC	040892746594
Commodity Code	85389099
LKZ_FDB/ CatalogID	NC60E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	1.102 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5357-0BB33-0AE2 Siemens

$6,917.68

Only 7 units left

Product
Article Number (Market Facing Number)	6FC53570BB330AE2 \| 6FC53570BB330AE2
Product Description	spare part SINUMERIK 840D/DE NCU 573.3 Pentium III without system software memory: NC 2.5 MB, PLC 96 KB PROFIBUS DP prepared
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515018322
UPC	Not available
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC60E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	3.594 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5250-6AY30-3AH0 Siemens

$2,394.75

Only 2 units left

Product
Article Number (Market Facing Number)	6FC52506AY303AH0
Product Description	spare part SINUMERIK 840DE CNC software 31-5 on PC card; export Software version 6.3; single license
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	Not available
UPC	Not available
Commodity Code	85235190
LKZ_FDB/ CatalogID	NC60E
Product Group	9302
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.220 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5203-0AD23-0AA1 Siemens

$799.63

Only 4 units left

Buy the Siemens 6FC5203-0AD23-0AA1 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5203-0AD23-0AA1 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5110-0DB02-0AA1 Siemens

$2,872.17

Only 4 units left

Product
Article Number (Market Facing Number)	6FC51100DB020AA1
Product Description	**spare part** SINUMERIK 840C/840CE MMC CPU 486DX VB 8 MB RAM
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515005957
UPC	Not available
Commodity Code	85389091
LKZ_FDB/ CatalogID	NC.840CE
Product Group	9302
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	2.646 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC3448-3EF Siemens

$0.00

Sold Out

Buy the Siemens 6FC3448-3EF - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC3448-3EF is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC9320-3GS Siemens

$0.00

Sold Out

Siemens Interface Card 6FC9320-3GS

Siemens 6FC3381-0EA-Z Siemens

$0.00

Sold Out

PLC Direct is not an authorized distributor. We offer a broad range of in-stock products with minimal lead time.

Siemens 6FC5357-0BA32-1AE0 Siemens

$12,656.08

Only 1 unit left

Product
Article Number (Market Facing Number)	6FC53570BA321AE0
Product Description	*spare part* SINUMERIK 840D NCU 573.2 standard version 5 axes/spindles (max. 12) memory: NC 1.5 MB, D-RAM 8 MB, PLC 64 KB (max. 288 KB) peripherals: S7-IM361, prepared for PROFIBUS DP.
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515018179
UPC	Not available
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC60E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	4.630 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5247-0AA33-0AA0 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC52470AA330AA0 \| 6FC52470AA330AA0
Product Description	**spare part** SINUMERIK FM NC/810D/DE/840D/DE replacement display for OP030
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	Not available
UPC	887621195694
Commodity Code	85389091
LKZ_FDB/ CatalogID	NC60E
Product Group	3512
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.992 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5303-1AF02-8AJ0 Siemens

$4,367.20

Only 3 units left

Buy the Siemens 6FC5303-1AF02-8AJ0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5303-1AF02-8AJ0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5403-0AA20-0AA0 Siemens

$5,338.69

Only 9 units left

Product
Article Number (Market Facing Number)	6FC54030AA200AA0 \| 6FC54030AA200AA0
Product Description	**spare part** SINUMERIK handheld terminal HT 8
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515020172
UPC	040892746518
Commodity Code	85371098
LKZ_FDB/ CatalogID	NC62
Product Group	3512
Group Code	R2S1
Country of origin	Austria
SCIP number	Not available
Delivery information
Net Weight (lb)	3.748 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5303-0AF19-0AA0 Siemens

$0.00

Sold Out

PLC Direct is not an authorized distributor. We offer a broad range of in-stock products with minimal lead time.

Siemens 6FC5203-0AD22-0AA1 Siemens

$1,179.12

Only 1 unit left

PLC Direct is not an authorized distributor. We offer a broad range of in-stock products with minimal lead time.

Siemens 6FC5203-0AF26-0AA0-S16 Siemens

$860.45

Only 3 units left

Buy the Siemens 6FC5203-0AF26-0AA0-S16 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5203-0AF26-0AA0-S16 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5250-0AC11-0AA0 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC52500AC110AA0 \| 6FC52500AC110AA0
Product Description	**spare part** SINUMERIK 840D/840DE Safety Integrated Axis / Spindle software option delivery of a license (CoL)
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515017271
UPC	Not available
Commodity Code	49011000
LKZ_FDB/ CatalogID	NC60
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.022 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5203-0AB50-0AA2 Siemens

$6,189.26

Only 5 units left

Product
Article Number (Market Facing Number)	6FC52030AB500AA2 \| 6FC52030AB500AA2
Product Description	**spare part** SINUMERIK FM NC/810D/DE/840D/DE flat operator panel OP031 460 mm operator panel with flat screen 10.4" color standard layout, Trumpf
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	Not available
UPC	804766094880
Commodity Code	85371098
LKZ_FDB/ CatalogID	NC60E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	15.653 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5840-1XG10-7YA0 Siemens

$2,206.04

Only 3 units left

Buy the Siemens 6FC5840-1XG10-7YA0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5840-1XG10-7YA0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5247-0AA21-0AA0 Siemens

$0.00

Sold Out

PLC Direct is not an authorized distributor. We offer a broad range of in-stock products with minimal lead time.

Siemens 6FC5247-0AA36-0AA0 Siemens

$626.98

Only 4 units left

Product
Article Number (Market Facing Number)	6FC52470AA360AA0
Product Description	SINUMERIK FM-NC/810D/DE/840D/DE HARD DISK WITH MOUNTING PLATE AND DAMPER, FOR MMC103 6FC5210-0DA20-1AA1 6FC5210-0DA20-2AA1 6FC5210-0DA21-2AA1
Product family	Not available
Product Lifecycle (PLM)	PM500:Discontinued Product or end of PLM & Support
Additional Product Information
EAN	Not available
UPC	Not available
Commodity Code	Not available
LKZ_FDB/ CatalogID	NC60E
Product Group	Not available
Group Code	R211
Country of origin	Not available
SCIP number	Not available
Delivery information
Net Weight (lb)	Not available
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5251-0AB01-0AA0 Siemens

$1,736.72

Only 1 unit left

Product
Article Number (Market Facing Number)	6FC52510AB010AA0 \| 6FC52510AB010AA0
Product Description	**spare part** SINUMERIK FM NC/810/840D/DE TRANSMIT and peripheral surface transformation delivery of a license (CoL)
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	Not available
UPC	040892739848
Commodity Code	49011000
LKZ_FDB/ CatalogID	NC60
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.022 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5111-0BA01-0AA0 Siemens

$1,232.70

Only 9 units left

Product
Article Number (Market Facing Number)	6FC51110BA010AA0 \| 6FC51110BA010AA0
Product Description	**spare part** SINUMERIK 840C/840CE measuring circuit analog, 20 mm 3 measuring circuits, not prepared for EXEN
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515006039
UPC	Not available
Commodity Code	85389091
LKZ_FDB/ CatalogID	NC.840CE
Product Group	9302
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.926 lb
Package size unit of measure	Not available
Packaging Quantity	1

Previous Page 82 / 90Next

CNC controllers are the central hardware units that govern all axis motion, PLC sequencing, and operator interaction for CNC machine tools, and the failure of a controller can bring an entire machining operation to a standstill. Sourcing a compatible replacement CNC controller for an installed system requires matching not only the brand and model but also the specific generation, axis configuration, and communication architecture. PLC Direct supplies surplus sealed, refurbished, and used CNC controllers for installed Siemens SINUMERIK and Fanuc CNC machining systems.

Where Are CNC Controllers Used in Industrial Environments?

CNC controllers are used wherever machine tools require numerically controlled, multi-axis motion for cutting, forming, or finishing operations, from standalone turning centers to large multi-axis machining cells. Machine tool controllers from Siemens SINUMERIK and Fanuc CNC Series platforms are found across a wide range of metalworking and precision manufacturing environments. Facilities and operations that depend on CNC controllers include:

Metal cutting and machining centers using SINUMERIK CNC controls or Fanuc CNC systems to govern coordinated multi-axis milling, turning, drilling, and grinding operations.

Automotive manufacturing plants running high-volume CNC machining lines where replacement machine tool controllers must match the installed platform generation.

Aerospace fabrication operations dependent on tight-tolerance CNC machining, where CNC controller continuity is critical to maintaining process specifications.

Tool and die shops maintaining older SINUMERIK 828D or Fanuc Series 0i installations, where controller replacement is the only alternative to full machine decommissioning.

Industrial production facilities managing multi-brand CNC fleets requiring replacement CNC controls across both Siemens and Fanuc platforms within the same operation.

When a CNC controller fails in a production environment, the priority is sourcing a compatible replacement that restores the machine to its original operating specification.

Which Brands of CNC Controllers Does PLC Direct Stock?

PLC Direct carries CNC controllers across Siemens and Fanuc platforms, covering current-generation and legacy machine tool controllers for installed CNC machining systems.

Siemens SINUMERIK 840D sl CNC Controls: Siemens SINUMERIK 840D sl CNC controllers, including NCU 710, NCU 720, and NCU 730 configurations, are stocked for replacement in installed SINUMERIK 840D sl machining systems across manufacturing and fabrication environments.

Siemens SINUMERIK 828D CNC Controls: The SINUMERIK 828D is a compact panel-based CNC controller designed for turning and milling applications, and hardware for installed 828D systems is available for replacement and lifecycle support.

Siemens SINUMERIK ONE CNC Controls: SINUMERIK ONE NCU hardware is available for replacement in current-generation Siemens CNC machining environments requiring controller-level maintenance.

Fanuc Series CNC Controls: Fanuc CNC controllers, including Series 0i, 30i, 31i, and 35i machine tool controllers, are stocked for replacement and maintenance in installed Fanuc CNC milling, turning, grinding, and multi-axis machining systems.

All CNC controllers listed above are available as surplus sealed, refurbished, or used, providing condition-grade options to match both budget and application requirements.

What Should You Know Before Ordering CNC Controllers?

Hardware condition options: CNC controllers from PLC Direct are supplied as surplus sealed, refurbished, or used. Surplus sealed units are factory-sealed and undeployed; refurbished units have been tested and restored to operational condition; used controllers are pulled from service and sold as-is under the standard PLC Direct warranty.

Compatibility and part identification: CNC controllers are generation-specific and axis-configuration-specific. For Siemens SINUMERIK hardware, confirm the exact generation (SINUMERIK 828D, 840D sl, or SINUMERIK ONE), the NCU variant, and the PLC integration type before ordering, as these are not interchangeable across generations. For Fanuc CNC controls, confirm the Series generation (0i, 30i, 31i, or 35i) and the axis count. In both cases, the part number from the installed controller is the most reliable reference for sourcing a compatible replacement.

Warranty: All CNC controllers purchased from PLC Direct carry a standard 1-year PLC Direct warranty covering defects and functionality, applicable to surplus sealed, refurbished, and used products.

PLC Direct supplies CNC controllers for replacement and maintenance purposes and does not provide system design, programming, or integration services.

Frequently Asked Questions

PLC Direct stocks CNC controllers for installed Siemens SINUMERIK and Fanuc CNC systems, including SINUMERIK 828D, 840D sl, and SINUMERIK ONE machine tool controllers, and Fanuc Series 0i, 30i, 31i, and 35i CNC controls. Hardware is available as surplus sealed, refurbished, or used to support replacement and lifecycle maintenance of installed CNC machining systems.

Confirm the CNC controller brand and generation from the installed unit, for example, Siemens SINUMERIK 840D sl NCU 720 or Fanuc Series 30i, and locate the part number from the controller housing or documentation. Search by part number on plc-direct.com or contact PLC Direct directly to confirm availability of the specific machine tool controller needed.

No. Fanuc Series CNC generations (0i, 30i, 31i, 35i) differ in axis capacity, processing architecture, and I/O configuration. A replacement Fanuc CNC controller must match the installed Series generation and axis count to restore the machine to its original specification. Always confirm the exact Series designation and part number before ordering.

The SINUMERIK 828D is a compact, panel-integrated CNC controller designed for standard turning and milling machines, with the control hardware integrated into the operator panel. The SINUMERIK 840D sl is a modular, high-performance platform based on separate NCU and operator panel hardware, suited to complex multi-axis machining, grinding, and high-speed cutting applications. The two generations are architecturally distinct, and replacement hardware is not interchangeable between them.

All CNC controllers purchased from PLC Direct are covered by a 1-year PLC Direct warranty applicable to surplus sealed, refurbished, and used products, covering defects and functionality. PLC Direct does not offer programming, configuration, or integration services.