CNC Controllers

Showing 985 - 1008 of 2142 products

$6,494.60

Only 9 units left

Product
Article Number (Market Facing Number)	6FC53570BB150AA0 \| 6FC53570BB150AA0
Product Description	spare part SINUMERIK 840D/DE CNC hardware NCU 571.5, 400 MHz, 64 MB without system software memory: NC 3 MB, PLC 128 KB PROFIBUS DP prepared
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515014799
UPC	Not available
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC60E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	a7c42c3c-8e34-433c-8a3f-ee575b1360b0
Delivery information
Net Weight (lb)	2.646 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5303-0DM13-1AA1 Siemens

$1,032.51

Only 5 units left

Buy the Siemens 6FC5303-0DM13-1AA1 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5303-0DM13-1AA1 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5203-0AE00-0AA0 Siemens

$2,216.95

Only 9 units left

Buy the Siemens 6FC5203-0AE00-0AA0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5203-0AE00-0AA0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC52470AF084AA0 Siemens

$2,486.49

Only 6 units left

Product
Article Number (Market Facing Number)	6FC52470AF084AA0 \| 6FC52470AF084AA0
Product Description	SINUMERIK HARD DISK WITH MOUNTING PLATE AND DAMPER, FOR PCU 50.3 6FC5210-0DF31-2AA0 6FC5210-0DF33-2AA0 6FC5220-0AA31-2AA0 6FC5220-0AA33-2AA0
Product family	Not available
Product Lifecycle (PLM)	PM500:Discontinued Product or end of PLM & Support
Additional Product Information
EAN	Not available
UPC	040892736830
Commodity Code	85389099
LKZ_FDB/ CatalogID	NC61E
Product Group	3512
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	3.124 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5203-0AB10-0AA Siemens

$2,024.15

Only 3 units left

Buy the Siemens 6FC5203-0AB10-0AA - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5203-0AB10-0AA is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5357-0BA10-0AE0 Siemens

$2,967.80

Only 5 units left

Product
Article Number (Market Facing Number)	6FC53570BA100AE0
Product Description	**spare part** SINUMERIK 840D/840DE NCU 571 (can be exported); 5 axes/spindles; memory: NC 128 KB; PLC 64 KB (max. 96 KB) for I/O devices: S7 IM 361 with system software; device bus cable
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515018100
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)	2.205 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5203-0AF50-4AA1 Siemens

$10,974.35

Only 2 units left

Product
Article Number (Market Facing Number)	6FC52030AF504AA1 \| 6FC52030AF504AA1
Product Description	**spare part** SINUMERIK machine control panel MCP 416C-T, width 416 mm mechanical keys handwheel and feedrate override mouse
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	Not available
UPC	804766094972
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)	18.078 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5372-0AA30-0AB0 Siemens

$9,552.90

In stock, 13 units

SINUMERIK 840D SL NCU 720.3B PN WITH PLC 317-3 PN/DP INCL. DUAL FAN / BATTERY MODULE AND BATTERY

Siemens 6FC5220-0AA22-2AA0 Siemens

$8,432.13

Only 8 units left

Buy the Siemens 6FC5220-0AA22-2AA0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5220-0AA22-2AA0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5250-6BX30-4AH0 Siemens

$750.00

Only 2 units left

Product
Article Number (Market Facing Number)	6FC52506BX304AH0 \| 6FC52506BX304AH0
Product Description	*spare part* SINUMERIK 840D CNC software 12-5 on PC card; standard Software version 6.4; single license
Product family	Not available
Product Lifecycle (PLM)	PM500:Discontinued Product or end of PLM & Support
Additional Product Information
EAN	Not available
UPC	804766095245
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 6FC5373-0AA30-0AA1 Siemens

$14,511.74

In stock, 15 units

Product
Article Number (Market Facing Number)	6FC53730AA300AA1 \| 6FC53730AA300AA1
Product Description	spare part SINUMERIK 840D sl NCU730.3PN with PLC 317-3PN/DP user memory: CNC: 3 MB; PLC: 512 KB internal heat dissipation
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	4042948665343
UPC	887621150860
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC62
Product Group	5706
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	9.259 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5303-0AF50-3BA1 Siemens

$5,048.50

Only 5 units left

Product
Article Number (Market Facing Number)	6FC53030AF503BA1 \| 6FC53030AF503BA1
Product Description	**spare part** SINUMERIK machine control panel MCP 429C-M IE ERGOLINE width 429 mm mechanical keys rapid traverse and feedrate override mouse
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	Not available
UPC	887621150570
Commodity Code	85371098
LKZ_FDB/ CatalogID	NC61
Product Group	5706
Group Code	R2S1
Country of origin	Germany
SCIP number	5dbfe585-8e97-4015-92b6-533152b127b4
Delivery information
Net Weight (lb)	11.023 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC3984-4FJ02 Siemens

$0.00

Sold Out

Buy the Siemens 6FC3984-4FJ02 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC3984-4FJ02 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5002-5CN01-1BA0 Siemens

$472.70

Only 3 units left

Buy the Siemens 6FC5002-5CN01-1BA0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5002-5CN01-1BA0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC3481-1AC-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 6FC5210-0DF21-0 Siemens

$7,000.00

Only 3 units left

Buy the Siemens 6FC5210-0DF21-0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5210-0DF21-0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5370-1AM00-0AA0 Siemens

$2,465.00

Only 5 units left

Buy the Siemens 6FC5370-1AM00-0AA0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5370-1AM00-0AA0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC3986-3EU Siemens

$1,695.70

Only 3 units left

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

Siemens 6FC5154-0AX02-1AE0 Siemens

$648.05

Only 3 units left

Product
Article Number (Market Facing Number)	6FC51540AX021AE0
Product Description	SINUMERIK 840C/840CE SYSTEM SW FOR CP 315/CP 373 EPROM
Product family	Not available
Product Lifecycle (PLM)	PM500:Discontinued Product or end of PLM & Support
Additional Product Information
EAN	4025515006480
UPC	Not available
Commodity Code	85423255
LKZ_FDB/ CatalogID	NC.840CE
Product Group	9302
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.141 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5303-1AF02-8AE0 Siemens

$2,653.09

Only 2 units left

Product
Article Number (Market Facing Number)	6FC53031AF028AE0 \| 6FC53031AF028AE0
Product Description	**spare part** SINUMERIK pushbutton panel MPP 483 HTC-S05 connection MPI/PROFIBUS DP with connection for HT 8 customer-specific variant based on 6FC5303-1AF00-8AA1
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	Not available
UPC	040892744330
Commodity Code	85371098
LKZ_FDB/ CatalogID	NC61E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	6.614 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5203-0AF08-1AB0 Siemens

$3,100.06

Only 1 unit left

Product
Article Number (Market Facing Number)	6FC52030AF081AB0 \| 6FC52030AF081AB0
Product Description	**spare part** SINUMERIK operator panel front TP 015AT, 15" TFT (1024x 768) with membrane keys, touch and integrated TCU
Product family	Not available
Product Lifecycle (PLM)	PM500:Discontinued Product or end of PLM & Support
Additional Product Information
EAN	Not available
UPC	662643172720
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)	24.251 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC51030AE010AA1 Siemens

$1,911.75

Only 9 units left

Product
Article Number (Market Facing Number)	6FC51030AE010AA1 \| 6FC51030AE010AA1
Product Description	**spare part** SINUMERIK 840C/840CE keyboard interface for connection customer control panel 64 inputs 48 outputs (115-230 V AC)
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515016649
UPC	Not available
Commodity Code	85389099
LKZ_FDB/ CatalogID	NC.840CE
Product Group	9302
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	4.039 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC9310-1MD01 Siemens

$1,247.52

Only 3 units left

Product
Article Number (Market Facing Number)	6FC93101MD01 \| 6FC93101MD01
Product Description	**spare part** SINUMERIK (accessory) monitor switch, 3-channel 3-fold (color)
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515006886
UPC	Not available
Commodity Code	85389091
LKZ_FDB/ CatalogID	NC.840CE
Product Group	9306
Group Code	R2S3
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.816 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5203-0AC55-0AA0 Siemens

$1,505.69

Only 9 units left

Buy the Siemens 6FC5203-0AC55-0AA0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5203-0AC55-0AA0 is a direct drop-in replacement for existing installations and ships ready for integration.

Previous Page 42 / 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.