CNC Controllers

Showing 25 - 48 of 1897 products

Siemens 6FC5310-0DF00-2AA0 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 6FC3341-0GA-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 6FC5250-6BX30-3AH0 Siemens

$2,292.45

Only 4 units left

Product
Article Number (Market Facing Number)	6FC52506BX303AH0 \| 6FC52506BX303AH0
Product Description	*spare part* SINUMERIK 840D CNC software 12-5 on PC card; standard Software version 6.3; single license
Product family	Not available
Product Lifecycle (PLM)	PM500:Discontinued Product or end of PLM & Support
Additional Product Information
EAN	4025515017608
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 6FC5103-0AC02-0AA1 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC51030AC020AA1
Product Description	**spare part** SINUMERIK 840C/840CE full CNC keyboard with keyboard interface 115-230 V AC
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515016618
UPC	Not available
Commodity Code	85371091
LKZ_FDB/ CatalogID	NC.840CE
Product Group	9302
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	3.395 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5111-0CA70-0AA0 Siemens

$609.46

Only 3 units left

Product
Article Number (Market Facing Number)	6FC51110CA700AA0 \| 6FC51110CA700AA0
Product Description	**spare part** SINUMERIK 840C/840CE DMP terminating plug
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515006121
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)	0.088 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5250-3BX10-7AH0 Siemens

$0.00

Sold Out

Buy the Siemens 6FC5250-3BX10-7AH0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5250-3BX10-7AH0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5357-0BA33-1AE0 Siemens

$10,709.04

Only 5 units left

Product
Article Number (Market Facing Number)	6FC53570BA331AE0
Product Description	*spare part* SINUMERIK 840D NCU 573.2 standard version 5 axes/spindles (max. 31) memory: NC 1.5 MB, D-RAM 32 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	4025515018193
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)	2.646 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5250-7BY30-2AHO-8MB Siemens

$0.00

Sold Out

Buy the Siemens 6FC5250-7BY30-2AHO-8MB - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5250-7BY30-2AHO-8MB is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5303-1AF12-8CM0 Siemens

$2,497.12

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 6FC5317-5AA00-0AA0 Siemens

$11,002.50

Only 2 units left

Product
Article Number (Market Facing Number)	6FC53175AA000AA0 \| 6FC53175AA000AA0
Product Description	*spare part* SINUMERIK ONE NCU 1750 with PLC-1500F including twin fan module
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	4042948677223
UPC	804766901478
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC63
Product Group	5706
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	8.267 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5548-0BA20-1AF0 Siemens

$0.00

Sold Out

Buy the Siemens 6FC5548-0BA20-1AF0 Cable/Accessory - a factory-specified component for Siemens industrial automation systems providing reliable signal, power, or communication connections. The Siemens 6FC5548-0BA20-1AF0 is a direct replacement for existing installations.

Siemens 6FC5303-0AF23-1AA0 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC53030AF231AA0 \| 6FC53030AF231AA0
Product Description	**spare part** SINUMERIK machine control panel MCP 310 IE Industrial Ethernet width 310 mm, membrane keys
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	Not available
UPC	804766095665
Commodity Code	85371098
LKZ_FDB/ CatalogID	NC61E
Product Group	5706
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 6FC5247-0AF20-0AA0 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC52470AF200AA0
Product Description	SINUMERIK OPER. PANEL FRONT VIDEOLINK SENDER FOR DISTRIBUTED I/O 1 TO 10 M
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	85389091
LKZ_FDB/ CatalogID	NC60E
Product Group	9302
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	3.086 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5370-0AA00-3BA0 Siemens

$7,589.12

Only 5 units left

Product
Article Number (Market Facing Number)	6FC53700AA003BA0 \| 6FC53700AA003BA0
Product Description	spare part SINUMERIK 802D sl version G/N pro CNC operator panel with NC, PLC, HMI part and drive control for SINAMICS including logbook and tool box
Product family	Not available
Product Lifecycle (PLM)	PM500:Discontinued Product or end of PLM & Support
Additional Product Information
EAN	Not available
UPC	040892745054
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC.802D
Product Group	5707
Group Code	R2S1
Country of origin	China
SCIP number	Not available
Delivery information
Net Weight (lb)	14.991 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC51111-0BA02-0AA0 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 6FC5850-3XG20-1YA0 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC58503XG201YA0
Product Description	spare part SINUMERIK 840D sl CNC software 31-5 with HMI-SL, 6 languages: de, en, fr, es, it, zh-CHS software 2.4 on CF card with 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	NC61E
Product Group	9302
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.066 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5303-0AF50-0CA0 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC53030AF500CA0 \| 6FC53030AF500CA0
Product Description	SINUMERIK BEDIENTAFELFRONT OP 022-555 ERGOLINE 22" TFT, MULTI-TOUCH, 16:9 AND INTEGRATED TCU 30.3 THIS PRODUCT CAN ONLY BE DELIVERED TO THE DMG-MORI COMPANY
Product family	Not available
Product Lifecycle (PLM)	PM400:Announcement of product phase-out
Additional Product Information
EAN	Not available
UPC	195125310339
Commodity Code	85371098
LKZ_FDB/ CatalogID	NC62
Product Group	X0HH
Group Code	R211
Country of origin	Germany
SCIP number	b122112e-5a6f-4e45-849f-3285f744b079
Delivery information
Net Weight (lb)	16.647 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5203-0AB13-0AA2 Siemens

$8,407.83

Only 5 units left

Product
Article Number (Market Facing Number)	6FC52030AB130AA2 \| 6FC52030AB130AA2
Product Description	**spare part** SINUMERIK FM NC/810D/DE/840D/DE flat operator panel OP 031 19" operator panel with flat screen 26 cm/10.4" color US layout
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	Not available
UPC	804766094866
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)	14.266 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5203-0AB20-1AA0 Siemens

$2,726.00

Only 6 units left

Product
Article Number (Market Facing Number)	6FC52030AB201AA0 \| 6FC52030AB201AA0
Product Description	**spare part** SINUMERIK FM NC/810D/DE/840D/DE flat operator panel OP032S 310 mm operator panel with flat screen 10.4" color standard/US layout
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515006565
UPC	Not available
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)	10.803 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5-203-0AF50-0AA0 Siemens

$10,150.00

Only 3 units left

Product
Article Number (Market Facing Number)	6FC52030AF500AA0 \| 6FC52030AF500AA0
Product Description	**spare part** SINUMERIK operator panel front OP 015-416C 15" TFT, width 416 mm with mechanical buttons for installation video link receiver/TCU
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	Not available
UPC	804766094927
Commodity Code	85371098
LKZ_FDB/ CatalogID	NC60E
Product Group	3512
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	11.685 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5370-2AM02-0CA0 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 6FC5303-1AF02-8AW Siemens

$0.00

Sold Out

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

Siemens 6FC5303-0AF25-0AA0 Siemens

$0.00

Sold Out

Buy the Siemens 6FC5303-0AF25-0AA0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5303-0AF25-0AA0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5410-0AY03-1AA0 Siemens

$8,349.97

Only 9 units left

Product
Article Number (Market Facing Number)	6FC54100AY031AA0 \| 6FC54100AY031AA0
Product Description	spare part SINUMERIK 810DE CNC hardware CCU3.4 with CNC software (export) 512 KB NC memory (max. configuration 2.5 MB) PLC: 96 KB (max. 480 kB) prepared for PROFIBUS DP
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	Not available
UPC	040892746532
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC60E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	13d7faef-de75-4962-a6d4-4b494c23f9f6
Delivery information
Net Weight (lb)	3.197 lb
Package size unit of measure	Not available
Packaging Quantity	1

Previous Page 2 / 80Next

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.