CNC Controllers

Showing 1993 - 2016 of 2142 products

$6,182.11

Only 3 units left

Buy the Siemens 6FC5370-2BT02-0AA0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5370-2BT02-0AA0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5112-0EA03-0AA0 Siemens

$16,956.00

Only 4 units left

Product
Article Number (Market Facing Number)	6FC51120EA030AA0 \| 6FC51120EA030AA0
Product Description	**spare part** SINUMERIK 840C/840CE 4 active serial interfaces CP 315/CP 373 without system software
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	Not available
UPC	804766094736
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)	1.874 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6fc5357-0bb34-0ae1 Siemens

$14,713.35

Only 9 units left

Product
Article Number (Market Facing Number)	6FC53570BB340AE1
Product Description	spare part SINUMERIK 840D/DE NCU 573.4, 650 MHz, 64 MB (without fan box) 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	4025515018360
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)	2.690 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5211-0BA01-0AA2 Siemens

$4,067.31

Only 6 units left

Product
Article Number (Market Facing Number)	6FC52110BA010AA2 \| 6FC52110BA010AA2
Product Description	**spare part** SINUMERIK I/O analog drive interface for 4 axes via PROFIBUS DP with motion control functionality firmware 01.03.03.00
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	Not available
UPC	662643044133
Commodity Code	85389091
LKZ_FDB/ CatalogID	NC.802D
Product Group	5705
Group Code	R2S1
Country of origin	China
SCIP number	Not available
Delivery information
Net Weight (lb)	5.732 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5203-0AD27-0AA0-S28 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 6FC3651-0FA-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 6FC3988-5MC25 Siemens

$1,736.00

Only 4 units left

Buy the Siemens 6FC3988-5MC25 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC3988-5MC25 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5247-0AA00-0AA1 Siemens

$2,030.00

Only 6 units left

Product
Article Number (Market Facing Number)	6FC52470AA000AA1
Product Description	spare part SINUMERIK 840D/DE NCU box for recording the NCU 571/571.2/572/572.2/573 incl. power supply unit, battery and fan
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	4025515017097
UPC	Not available
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)	8.378 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5298-5AA70-0TP2 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC52985AA700TP2
Product Description	SINUMERIK 840D/FM-NC, DOCUMENTATION USER S GUIDE MEASURING CYCLES, (SW05) EDITION 06/00, SZECH
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	49011000
LKZ_FDB/ CatalogID	NC.DOK
Product Group	9307
Group Code	R211
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

Siemens 6FC5-548-0AA00-0AA0 Siemens

$928.28

Only 5 units left

Product
Article Number (Market Facing Number)	6FC55480AA000AA0 \| 6FC55480AA000AA0
Product Description	**spare part** STEPDRIVE C converter for stepper motors 5-phase; single-axis version
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	Not available
UPC	804766095917
Commodity Code	85044085
LKZ_FDB/ CatalogID	NC.802S
Product Group	9302
Group Code	R2S1
Country of origin	China
SCIP number	Not available
Delivery information
Net Weight (lb)	10.077 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC9340-6CY00-1BA0 Siemens

$364.50

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 6FC5303-1AF02-1AK0 Siemens

$4,614.77

Only 5 units left

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

Siemens 6FC5211-0BA01-0AA3 Siemens

$3,476.29

Only 3 units left

Product
Article Number (Market Facing Number)	6FC52110BA010AA3
Product Description	SINUMERIK PERIPHERIE ANALOG DRIVE INTERFACE (ADI4) FOR 4 AXES OVER PROFIBUS DP WITH MOTION CONTROL FUNCTIONALITY FIRMWARE 01.04
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	NC60
Product Group	9350
Group Code	R211
Country of origin	China
SCIP number	Not available
Delivery information
Net Weight (lb)	5.732 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5370-2AM02-0AA0 Siemens

$0.00

Sold Out

Buy the Siemens 6FC5370-2AM02-0AA0 I/O Module - an industrial input/output module providing signal interfacing for Siemens automation systems. Features reliable signal conditioning, industrial-grade isolation, and seamless Siemens platform integration. The Siemens 6FC5370-2AM02-0AA0 is a direct replacement for existing I/O installations.

Siemens 6FC5203-0AF11-2AA0 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC52030AF112AA0
Product Description	**spare part** SINUMERIK operator panel front OP010FT: 10.4 Touch with QWERTY membrane keyboard
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	85371098
LKZ_FDB/ CatalogID	NC60E
Product Group	3512
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	17.328 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5110-0DA02-0AA0 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC51100DA020AA0
Product Description	SINUMERIK 840C MMC CPU 368 SX, 8 MB RAM AND 387SX
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	NC.840CE
Product Group	Not available
Group Code	R211
Country of origin	Not available
SCIP number	Not available
Delivery information
Net Weight (lb)	2.646 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC3491-1AA Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC34911AA
Product Description	SINUMERIK 880M SINGLE TIER VERSION 1 SINGLE TIER VERSION 1
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	NC.880
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	Not available

Siemens 6FC5110-0BB02-0AA1 Siemens

$3,085.13

Only 5 units left

Product
Article Number (Market Facing Number)	6FC51100BB020AA1
Product Description	**spare part** SINUMERIK 840C/840CE NC CPU 486DX VB 8 MB RAM
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515016670
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)	1.389 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC9310-1MB01 Siemens

$1,740.00

Only 5 units left

Product
Article Number (Market Facing Number)	6FC93101MB01 \| 6FC93101MB01
Product Description	**spare part** SINUMERIK (accessory) keyboard selector switch (RS-232-C) 3-channel
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515006879
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)	0.838 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5203-0AF28-4BD0 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC52030AF284BD0
Product Description	**spare part** SINUMERIK FM NC/810D/DE/840D/DE pushbutton panel PP012H-S27 (A5E00000000) based on 6FC5203-0AF25-1AA0 2-channel enable suitable for HT6 not compatible for handheld programming unit
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	Not available
UPC	662643044065
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)	5.512 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5303-1AF12-8BM0 Siemens

$1,045.89

Only 4 units left

Buy the Siemens 6FC5303-1AF12-8BM0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5303-1AF12-8BM0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5850-1XG20-4YA0 Siemens

$2,898.55

Only 1 unit left

Product
Article Number (Market Facing Number)	6FC58501XG204YA0 \| 6FC58501XG204YA0
Product Description	spare part SINUMERIK 840D sl CNC software 6-3 with HMI-SL, 6 languages: de, en, fr, es, it, zh-CHS software 2.5 SP1 HF1 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	804766096143
Commodity Code	85235190
LKZ_FDB/ CatalogID	NC61E
Product Group	5706
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 6FC51100-0BB03-0AA1 Siemens

$4,357.85

Only 5 units left

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

Siemens 6FC9340-3WY00-1BJ00 Siemens

$0.00

Sold Out

Buy the Siemens 6FC9340-3WY00-1BJ00 Cable/Accessory - a factory-specified component for Siemens industrial automation systems providing reliable signal, power, or communication connections. The Siemens 6FC9340-3WY00-1BJ00 is a direct replacement for existing installations.

Previous Page 84 / 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.