ENGINEERED FOR
EXTREME HEAT
Three performance-focused grades of Silica Ramming Mass — each carefully selected and processed for consistent lining life, predictable sintering behaviour, and reliable heat performance in induction furnace environments.
BASEMIX M 101
Binder-free silica ramming mass for operators who demand full sintering control.
PREMIX M 102 — BORIC
Boric bonded grade for enhanced sintering and extended lining life.
PREMIX M 103 — BORON
Boron bonded grade for the most demanding furnace environments.
SELECT THE RIGHT PERFORMANCE GRADE FOR YOUR FURNACE
| Property | Basemix M 101 | Premix M 102 — Boric | Premix M 103 — Boron |
|---|---|---|---|
| Binder Type | Binder-Free | Boric Acid Bonded | Advanced Binder System (Low Boron Optimized) |
| Sintering Behaviour | Manual sintering control required | Consistent & uniform sintering | Fast, controlled sintering with dense matrix formation |
| Thermal Stability | Moderate thermal shock resistance | Improved thermal stability | High thermal shock & spalling resistance |
| Corrosion Resistance | Suitable for mild slag conditions | Improved resistance to slag attack | High resistance to aggressive slag & alloying conditions |
| Lining Life | Standard campaign life | +15–25% longer lining life | Maximum campaign life under high load conditions |
| Ideal Furnace Type | All standard MF induction furnaces | Medium-frequency IF (improved stability) | High-performance MF IF (high turbulence / alloy steel / demanding operations) |
| Thermal Shock Resistance | Moderate | Good | Excellent |
| Slag Resistance | Basic | Improved | High |
| Grain Structure | Optimized grain structure for packing density | ||
| Net Weight | 50 KG | 50 KG | 50 KG |
| Made in India | ✓ | ✓ | ✓ |
WHERE OUR PRODUCTS PERFORM
Primary application for all three grades — induction furnace lining in carbon steel, alloy steel, and stainless steel foundries where consistent lining performance is critical.
Suitable for medium and high-frequency induction melting operations — our grades are selected based on furnace frequency, capacity, and steel chemistry requirements.
Whether running continuous production cycles or batch melting, our products are formulated to deliver reliable lining performance without unexpected failures mid-cycle.
Available for both new furnace lining and scheduled maintenance relining work. Our customised grain distributions accommodate both full cold-lining and hot-repair applications.
For applications producing high-purity or speciality steel grades, our Boron bonded M 103 grade provides the corrosion resistance and thermal stability needed to maintain lining integrity.
We work directly with plant managers and furnace operators to develop grain distributions and product specifications matched to your exact furnace design, capacity, and operating cycles.
Silica Ramming Mass — Frequently Asked Questions
Plain-English answers to what plant managers and furnace operators ask us most often.
What is silica ramming mass?
Silica ramming mass is a high-purity refractory material made from crushed and graded quartzite (SiO2 > 97.5%). It is rammed into the inner wall of an induction furnace to form a monolithic lining that holds molten steel at 1,650 °C. PSM Orechem supplies three grades:
- BASEMIX M 101 — binder free, for experienced operators
- PREMIX M 102 BORIC — boric acid bonded, the everyday workhorse
- PREMIX M 103 BORON — boron compound bonded, longest campaign life
Which silica ramming mass is best for my induction furnace?
It depends on your furnace and operation. For experienced operators who want full control over sintering, BASEMIX M 101 (binder-free) is ideal. For everyday mild and carbon steel production, PREMIX M 102 BORIC is the workhorse — easier first heat, forgiving sintering. For high-output and high-frequency furnaces aiming for the longest campaign life, PREMIX M 103 BORON delivers up to 55 hours per campaign.
Not sure? Run our free 2-minute Furnace Pulse audit and we'll recommend the right grade for your furnace.
What is the difference between boric bonded and boron bonded ramming mass?
Boric bonded ramming mass (PREMIX M 102) uses boric acid as the binder. Boric acid melts at a lower temperature on the first heat, forming a glass film between silica grains that makes sintering more forgiving. Best for everyday mild and carbon steel production.
Boron bonded ramming mass (PREMIX M 103) uses a boron compound binder. It produces a denser, tougher sintered body with better slag resistance — yielding more heats per campaign at a higher per-bag cost. Best for high-output and high-frequency furnaces.
How many heats does silica ramming mass last in an induction furnace?
Campaign life depends on the grade, furnace, and operating conditions. PSM Orechem grades typically deliver:
- PREMIX M 103 BORON — up to 55 hours per campaign
- PREMIX M 102 BORIC — typically 35-45 heats
- BASEMIX M 101 — varies with sintering quality
Lining thickness, charge mix, slag chemistry, and operator skill all affect actual heat count. FURNEX — our free AI platform — predicts heats from your specific supplier and charge mix.
What is the silica purity in PSM Orechem ramming mass?
All three grades use quartzite with:
- SiO2 > 97.5%
- Fe2O3 < 0.20% (iron content)
- Al2O3 < 0.30% (alumina)
The quartzite is sourced from select deposits in Jharkhand and Rajasthan, two regions in India known for the highest-purity natural silica. The stone is crushed, washed, and graded into three precise size ranges before bagging.
How is silica ramming mass installed in an induction furnace?
A steel template called a former is lowered into the empty induction furnace shell. The silica ramming mass is poured between the former and the casing in lifts, then rammed down with pneumatic tools — pour, ram, pour, ram — until it forms a single monolithic body. The lining is thickest at the floor (around 6 inches), tapering at the walls.
The former melts away on the first heat after sintering — see the science page for a chapter-by-chapter walkthrough.
Where is PSM Orechem silica ramming mass made?
PSM Orechem supplies silica ramming mass in India from quartzite sourced in Jharkhand and Rajasthan. The company is the newest chapter of a family that has made ramming mass for three generations — a business started by the founder's grandfather in Rajasthan in 1972. Quartzite is selected at the source, crushed, washed, graded, and packaged before shipping to induction furnace operators across India.
How do I get a silica ramming mass quote from PSM Orechem?
The fastest way is to contact us with your furnace details (capacity, frequency, current grade, charge mix) and we'll respond with a recommended grade and quote within one business day. If you want a technical assessment first, our free Furnace Pulse audit takes 2 minutes and tells you what's holding back your current lining.