CROMA

Cost-effective entry-level coordinate measuring machines.

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Providing multifaceted yet cost-effective dimensional inspection capabilities, CROMA offers the ideal option for customers looking to purchase their first coordinate measuring machine or increase capacity for an existing quality assurance operation.

Supporting manufacturers from the beginning of the product lifecycle through to final approval, CROMA machines give all-round performance for workpieces of many shapes and sizes, and deliver a quick return on investment.

The CROMA range of affordable bridge-type coordinate measuring machines (CMMs) is designed to enable customers to improve quality control across the production process and provide great value for money. With advanced frame design, well-engineered structure, specially-designed controller technology and the latest software packages, the range balances accuracy, throughput and reliability with price/performance ratio.

Available in sizes to suit every kind of business, CROMA machines combine innovative design with proven construction and patented technology. User-friendly operation driven by the flagship dimensional metrology software, PC-DMIS, gives an effective measurement solution for the needs of new entrants to the CMM market.

Recursos e benefícios

All aluminium structure
Robust frame with hard anodised aerometal beam and Z-axis offers temperature consistency as well as a reduced mass of moving parts and force of inertia to ensure high accuracy during high-speed movement.

Patented triangular beam
The triangular beam design offers a lower centre of gravity, better stiffness and more reliable motion compared to rectangular and cross beams.

Integral dovetail guide way
Integral dovetail guide way on Y-axis reduces the machine weight and helps prevent motional swings during the inspection process to ensure measuring accuracy and stability.

Self-cleaning air bearings
All three axes run on high-precision self-cleaning air bearings, providing smooth movement that reduces wear on the guide ways to maximise equipment durability and minimise repair costs.

High-precision optical scales
European-import, high-precision optical scales installed with one end fixed and the other freely extensible ensures linear expansion and contraction with temperature changes to mitigate the impact of thermal deformation.

DC servo motors
All three axes are driven by DC servo motors, providing stable movement and exact positioning to support accurate probe location and overall measurement.

Specially-designed control system
The IDC-I control system, designed by Hexagon Metrology specifically for the CROMA range, improves the dynamic performance and measuring capabilities of the machine.

Technical data

Machine Type		CROMA 564	CROMA 686	CROMA 8106	CROMA 8126
Strokes (mm)	X	500	600	800	800
	Y	600	800	1000	1200
	Z	400	600	600	600
Measuring range (mm)	Dx	634	734	934	934
	Dz	144	144	144	144
	Dz1	594	794	794	794
Working plate (mm)	Ph	783	783	805	805
Working plate (mm)	Py	1155	1355	1555	1755
Support (mm)	Sy	824	978	1178	1378
Support (mm)	Sy1	356	379	379	379
Overall size (mm)	Lx	1050	1150	1350	1350
	Ly	1535	1735	1935	2135
	Lz	2247	2647	2729	2729
Max. part weight		300	300	300	300
Machine wieght (kg)		590	730	1074	1196
MPEe (μm)		2.8 + L / 300	2.8 + L / 300	3.0 + L / 300	3.0 + L / 300
Probe/Sensor	Manual or automatic
Scales resolution μm		0.078	0.078	0.078	0.078
Max. 3D speed (mm/s)		520	520	520	520
Max. 3D acceleration (mm/s2)		1730	1730	1730	1730
Air pressure		120 Nl / min, 0.45 Mpa	120 Nl / min, 0.45 Mpa	120 Nl / min, 0.45 Mpa	120 Nl / min, 0.45 Mpa
Operating temperature		20±2°C	20±2°C	20±2°C	20±2°C
Temperature gradients:
Air temperature variation		1°C / h - 2°C / 24h	1°C / h - 2°C / 24h	1°C / h - 2°C / 24h	1°C / h - 2°C / 24h
Air temperature gradient		1°C / m	1°C / m	1°C / m	1°C / m
HumidityOMA		45% - 75%	45% - 75%	45% - 75%	45% - 75%