Dry Film Lubrication with OKS 511 on Hot-Rolling Maintenance Slides and Stamping Die Guide Pillars

November 12, 2026

In the hot-rolling area of a steel plant, heavy-duty maintenance slides suffered from boundary lubrication at restart after long standstill periods. Conventional grease tended to dry out and pick up dust in the residual heat and dusty environment, causing sticky cold-start movement and stick-slip. In the same shop, stamping die guide pillars operated intermittently with low speed and high load; grease was easily squeezed out or carbonized near high-temperature zones.

1. Why OKS 511

Per OKS 511 TDS:

MoS₂ + graphite solid lubricant, fast-drying, no oil migration
Operating temperature range −180°C to +450°C
Optimal film thickness 10–15 μm; press-fit friction coefficient μ ≈ 0.07
Suited for heavy load, low speed, oscillating/intermittent motion, and dusty environments
Can be used with existing oil/grease as run-in and start-up protection

2. Application Method

Mechanically clean slides and pillars; remove old grease and oxide scale.
Degrease with OKS 2610/2611 cleaner; surface must be bright, dry metal.
Control surface roughness to 5–10 μm.
Shake can well; spray thinly from 20–30 cm distance; target film thickness ≈10–15 μm.
Air-dry approximately 30 minutes at 20–25°C; do not mix with wet oil.
Re-spray worn spots locally instead of full stripping.

3. Results

No stick-slip at cold start; slides moved smoothly without "running-in" delay.
Stamping pillars showed reduced friction noise; guide bushing inspection intervals were extended.
In dusty areas, no grease caking occurred; only a uniform grey-black dry film remained.
After maintenance shutdown, a small amount of grease combined with the dry film restored operation quickly.
One 400 ml can covered multiple guide pillars and local slide maintenance.

4. Limitations

OKS 511 is an auxiliary dry film lubricant, not a substitute for flooded oil lubrication. For continuous high-speed operation, water-flushed areas, or long-term oil immersion, oil/grease circulation systems should remain the primary lubrication method; the dry film serves only as start-up and edge-zone protection.

Contact Person :	ouyang
Tel :	+86 13510063180

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101, No. 130 Fengping Road, Shitouling Industrial Zone, Wulian Village, Fenggang Town, Dongguan City, Guangdong Province, China

da.oyang@sanbang68.com

+86 13510063180

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